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Go Math Grade 2 Chapter 6 Answer Key Pdf: Become master in the concepts of 3-Digit Addition and Subtraction by availing the Go Math Grade 2 Chapter 6 Answer Key available. Practice using the Elementary School 2nd Grade Go Math Chapter 6 Solutions via quick links available. Look no further and ace up your preparation using the Go Math Grade 2 Answer Key Ch 6 to score higher grades in exams. Make the most out of these resources and attempt the final exam with confidence and clear the exam with flying colors.

3-Digit Addition and Subtraction Go Math Grade 2 Chapter 6 Answer Key Pdf

HMH Go Math Grade 2 Chapter 6 Answers 3-Digit Addition and Subtraction include different questions covering the Problems from Lessons, Review/Test, Homework & Practice, Assessment Tests, etc. Second Grade Go Math Ch 6 3-Digit Addition and Subtraction Answer Key is sequenced as per the Go Math Textbooks. Download the Topicwise Go Math Grade 2 Ch 6 3-Digit Addition and Subtraction Concepts in PDF Format for free of cost from here and prepare the respective topic accordingly.

• 3-Digit Addition and Subtraction Show What You Know – Page 388
• 3-Digit Addition and Subtraction Vocabulary Builder – Page 389
• 3-Digit Addition and Subtraction Game 2-Digit Shuffle – Page 390
• 3-Digit Addition and Subtraction Vocabulary Game – Page(390A-390B)
• Lesson 6.1 Draw to Represent 3-Digit Addition – Page(391-396)
• Draw to Represent 3-Digit Addition Homework & Practice 6.1 – Page(395-396)
• Lesson 6.2 Break Apart 3-Digit Addends – Page(397-402)
• Break Apart 3-Digit Addends Homework & Practice 6.2 – Page(401-402)
• Lesson 6.3 3-Digit Addition: Regroup Ones – Page(403-408)
• 3-Digit Addition: Regroup Ones Homework & Practice 6.3 – Page(407-408)
• Lesson 6.4 3-Digit Addition: Regroup Tens – Page(409-414)
• 3-Digit Addition: Regroup Tens Homework & Practice 6.4 – Page(413-414)
• Lesson 6.5 Addition: Regroup Ones and Tens – Page(415-420)
• Addition: Regroup Ones and Tens Homework & Practice 6.5 – Page(419-420)
• 3-Digit Addition and Subtraction Mid-Chapter Checkpoint – Page 418
• Lesson 6.6 Problem Solving • 3-Digit Subtraction – Page(421-426)
• Problem Solving • 3-Digit Subtraction Homework & Practice 6.6 – Page(425-426)
• Lesson 6.7 3-Digit Subtraction: Regroup Tens – Page(427-432)
• 3-Digit Subtraction: Regroup Tens Homework & Practice 6.7 – Page(431-432)
• Lesson 6.8 3-Digit Subtraction: Regroup Hundreds – Page(433-438)
• 3-Digit Subtraction: Regroup Hundreds Homework & Practice 6.8 – Page(437-438)
• Lesson 6.9 Subtraction: Regroup Hundreds and Tens – Page(439-444)
• Subtraction: Regroup Hundreds and Tens Homework & Practice 6.9 – Page(443-444)
• Lesson 6.10 Regrouping with Zeros – Page(445-450)
• Regrouping with Zeros Homework & Practice 6.10 – Page(449-450)
• 3-Digit Addition and Subtraction Review/Test – Page(451-454)

3-Digit Addition and Subtraction Show What You Know

Model Subtracting Tens
Write the difference.
Question 1.

5 tens − 3 tens = ______ tens
50 − 30 = _____
Answer:
20

Explanation:
There are 5 tens if we subtract 3 tens only 2 tens will remain. Therefore 50‐30 =20.

Question 2.

7 tens − 2 tens = ______ tens
70 − 20 = _____
Answer:
50

Explanation:
There are 7 tens if we subtract 2 tens only 5 tens will remain. Therefore 70‐20 =50.

2-Digit Addition
Write the sum.
Question 3.

Answer:

Explanation:
In the above picture there are 7 tens and 9 ones.So, 54+25=79

Question 4.

Answer:

Explanation:
In the above picture there are 4 tens and 13 ones.13 ones is 1 tens and 3 ones.Finally there are 5 tens and 3 ones.So, 35+18=83

Question 5.

Answer:

Explanation:
In the above picture there are 14 tens and 9 ones.14 tens means 1 hundreds and 4 tens.Finally there are 1 hundreds, 4 tens and 9 ones.So, 82+67=149.

Question 6.

Answer:

Explanation:
In the above picture there are 10 tens and 10 ones.10 tens means 1 hundreds and 10 ones means 1 tens.Finally there are 1 hundreds and 1 tens. So, 29+81=110

Hundreds, Tens, and Ones
Write the hundreds, tens, and ones shown. Write the number.
Question 7.

Answer:

Explanation:
In the above picture there are 2 hundreds, 5 tens and 3 ones.So, the number is 253.

Question 8.

Answer:

Explanation:
In the above picture there are 3 hundreds, 5 tens and 1 ones.So, the number is 351.

3-Digit Addition and Subtraction Vocabulary Builder

Visualize It
Fill in the graphic organizer by writing examples of ways to regroup.

Understand Vocabulary
Question 1.
Write a number that has a hundreds digit that is greater than its tens digit. _________
Answer:
540

Explanation:
In the number 540 the tens digit is 4 and the hundreds digit is 5.As 5 is greater than 4 the number has a hundreds digit that is greater than its tens digit.

Question 2.
Write an addition sentence that has a sum of 20. ______
Answer:
10+10=20

Explanation:
There are 10 ones and 10 ones in the above picture.10 ones means 1 tens.Finally there are 2 tens.So, 10+10=20.

Question 3.
Write a subtraction sentence that has a difference of 10. ________
Answer:
20-10=10

Explanation:
There are 2 tens in above picture if we subtract 1 tens from it we get 1 tens.So, 20‐10=10.

3-Digit Addition and Subtraction Game 2-Digit Shuffle

Materials

• number cards 10–50
• 

Play with a partner.

1. Shuffle the number cards. Place them face down in a pile.
2. Take two cards. Say the sum of the two numbers.
3. Your partner checks your sum.
4. If your sum is correct, place a counter on a button. If you regrouped to solve, place a counter on another button.
5. Take turns. Cover all the buttons. The player with more counters on the board wins.
6. Repeat the game, saying the difference between the two numbers for each turn.
   

-Digit Addition and Subtraction Vocabulary Game

Picture It

For 3 to 4 players
Materials

• timer
• sketch pad

How to Play

1. Take turns to play.
2. Choose a math word from the Word Box. Do not say the word.
3. Set the timer for 1 minute.
4. Draw pictures and numbers to give clues about the math word.
5. The first player to guess the word gets 1 point. If he or she use the word in a sentence, they get 1 more point. That player gets the next turn.
6. The first player to score 5 points wins.

The Write Way
Reflect
Choose one idea. Write about it on the lines below.

• Tell how to solve this problem.
  42 – 25 = _____
• Write a paragraph that uses at least three of these words.
  addends digit sum hundred regroup
• Explain something you know about regrouping.
  

Lesson 6.1 Draw to Represent 3-Digit Addition

Essential Question How do you draw quick pictures to show adding 3-digit numbers?

Listen and Draw

Draw quick pictures to model the problem. Then solve.

MATHEMATICAL PRACTICES
Use Tools Explain how your quick pictures show the problem.
Answer:

Explanation:
Manuel read 45 pages in a book and then he read 31 morw pages.As shown in the above picture there are 7 tens and 6 ones.It is 76.Therefore manuel read 76 pages in all.

Share and Show

Draw quick pictures. Write how many hundreds, tens, and ones in all. Write the number.
Question 1.
Add 125 and 344.

_____ hundreds _____ tens _____ ones
______
Answer:

4 hundreds 6 tens and 9 ones is 469.

Explanation:
In the above picture, there are 4 hundreds, 6 tens, and 9 ones. So, the number is 469.

Go Math 2nd Grade Estimation in 3 Digit Subtraction Question 2.
Add 307 and 251.

_____ hundreds _____ tens _____ ones
______
Answer:

5 hundreds 5 tens and 8 ones is 558

Explanation:
In the above picture, there are 5 hundreds, 5 tens and 8 ones.So, the number is 558.

On Your Own

Draw quick pictures. Write how many hundreds, tens, and ones in all. Write the number.
Question 3.
Add 231 and 218.

_____ hundreds _____ tens _____ ones
______
Answer:

4 hundreds 4 tens and 9 ones is 449.

Explanation:
In the above picture there are 4 hundreds, 4 tens and 9 ones.So, the number is 449.

Question 4.
Add 232 and 150.

_____ hundreds _____ tens _____ ones
______
Answer:

3 hundreds 8 tens and 2 onea is 382

Explanation:
In the above picture there are 3 hundreds, 8 tens and 2 ones.So, the number is 382.

Question 5.
THINK SMARTER
Use the quick pictures to find the two numbers being added. Then write how many hundreds, tens, and ones in all. Write the number.

Add ____ and _____
_____ hundreds _____ tens _____ ones
______
Answer:
Add 153 and 205
There are 3 hundreds, 5 tens and 8 ones.So, the sum of 153 and 205 is 358.
3 hundreds 5 tens and 8 ones.

Problem Solving • Applications

Question 6.
MATHEMATICAL PRACTICE Represent a Problem
There are 125 poems in Carrie’s book and 143 poems in Angie’s book. How many poems are in these two books? Draw a quick picture to solve.
______ poems
Answer:

Explanation:
Add 125 and 143
There are 2 hundreds, 6 tens and 8 ones.So, the sum of 125 and 143 is 268.
2 hundreds 6 tens and 8 ones.

Question 7.
THINK SMARTER+
Rhys wants to add 456 and 131.
Help Rhys solve this problem. Draw quick pictures. Write how many hundreds, tens, and ones in all. Write the number.

_____ hundreds _____ tens _____ ones
______
Answer:

Explanation:
Add 456 and 131.
In the above picture there are 5 hundreds, 8 tens and 7 ones.So the number is 587.
5 hundreds 8 tens 7 ones

TAKE HOME ACTIVITY • Write 145 + 122. Have your child explain how he or she can draw quick pictures to find the sum.
Answer:

Explanation:
Add 145 and 122.
There are 2 hundreds, 6 tens and 7 ones in the above picture.So, the sum of 145 and 122 is 267.
2 hundred 6 tens 7 ones.

Draw to Represent 3-Digit Addition Homework & Practice 6.1

Draw quick pictures. Write how many hundreds, tens, and ones in all. Write the number.
Question 1.
Add 142 and 215.

_____ hundreds _____ tens _____ ones
______
Answer:

Explanation:
Add 142 and 215.
In the above picture add the hundreds, tens and ones. There are 3 hundreds, 5 tens and 7 ones.So the sum of 142 and 215 is 357.
3 hundreds 5 tens 7 ones.

Problem Solving
Solve. Write or draw to explain.
Question 2.
A farmer sold 324 lemons and 255 limes. How many pieces of fruit did the farmer sell altogether?
______ pieces of fruit
Answer:

Explanation:
Add 324 and 255.
In the above picture add the hundreds,tens and ones.There are 5 hundreds 7 tens and 9 ones.So the sum of 324 and 255 is 579.
5 hundreds 7 tens 9 ones.

Question 3.
WRITE
Draw quick pictures and write to tell how you would add 342 and 416.
Answer:

Explanation:
Add 342 and 416.
In the above picture add the hundreds,tens and ones.There are 7 hundreds, 5 tens and 8 ones.So, the sum of 342 and 416 is 758.
7 hundreds 5 tens and 8 ones.

Lesson Check
Question 1.
Ms. Carol sold 346 child tickets and 253 adult tickets. How many tickets did Ms. Carol sell?
______ tickets
Answer:

Explanation:
Add 346 and 253.
In the above picture add the humdreds, tens and ones.There are 5 hundreds, 9 tens and 9 ones.So, the sum of 346 and 253 is 599.
5 hundreds 9 tens 9 ones.

Go Math Grade 2 Pdf Explain How to Subtract Question 2.
Mr. Harris counted 227 gray pebbles and 341 white pebbles. How many pebbles did Mr. Harris count?
_______ pebbles
Answer:

Explanation:
Add 227 and 341.
In the above picture add the hundreds, tens and ones.There are 5 hundreds,6 tens and 8 ones.So the sum of 227 and 341 is 568.
5 hundreds 6 tens 8 ones.

Question 3.
Pat has 3 rows of shells. There are 4 shells in each row. How many shells does Pat have?
_____ shells
Answer:

Explanation:
Add the shells in the above picture.There are 3 rows of shells and each row has 4 shells each.So, there are 12 shells in all.
1 tens and 2 ones.

Question 4.
Kara counted 32 red pens, 25 blue pens, 7 black pens, and 24 green pens. How many pens did Kara count?
______ pens
Answer:

Explanation:
Add the number of pens kara counts.Add the tens and ones.There are 7 tens and 18 ones.So, the number of pens kara counted is 7 tens and 18 ones ie 8 tens and 8 ones.Therefore the sum of 32,25,7 and 24 is 88.
8 tens and 8 ones.

Question 5.
Kai had 46 blocks. He gave 39 blocks to his sister. How many blocks does Kai have left?
46 – 39 = ______ blocks
Answer:

Explanation:
In the above picture 39 is removed from 46.So, the difference of 46 and 39 is 7.
7 ones.

Question 6.
A shop has 55 posters for sale. 34 posters show sports. The rest of the posters show animals. How many posters show animals?
_______ posters
Answer:

Explanation:
In the above picture 34 is removed from 55.So, the difference of 55 and 34 is 21.
2 tens 1 ones.

Lesson 6.2 Break Apart 3-Digit Addends

Essential Question How do you break apart addends to add hundreds, tens, and then ones?

Listen and Draw

Write the number. Draw a quick picture for the number. Then write the number in different ways.
_______
______ hundreds ______ tens _____ ones
_____ + _____ + ______
Answer:
258
2 hundreds 5 tens 8 ones
200+50+8

_______
______ hundreds ______ tens _____ ones
_____ + _____ + ______
Answer:
325
3 hundreds 2 tens 5 ones
300+20+8

MATHEMATICAL PRACTICES
Make Connections
What number can be written as 400 + 20 + 9?
Answer:
400+20+9
=4 hundreds 2 tens and 9 ones
400+20+9=429

Model and Draw

Break apart the addends into hundreds, tens, and ones. Add the hundreds, the tens, and the ones. Then find the total sum.

Answer:

Explanation:
Add 538 and 216.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,4 tens and 14 ones.So, the sum of 538 and 216 is 754.
7 hundreds 5 tens 4 ones.

Share and Show

Break apart the addends to find the sum.
Question 1.

Answer:

Explanation:
Add 321 and 457.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,7 tens and 8 ones.So, the sum of 321 and 457 is 778
7 hundreds 7 tens 8 ones.

Question 2.

Answer:

Explanation:
Add 744 and 162. Add the hundreds, tens and ones from the above picture. There are 8 hundreds,1 tens and 6 ones.So, the sum of 744 and 162 is 906.
9 hundreds 0 tens 6 ones.

Go Math Second Grade Subtraction with Renaming Answer Key Question 3.

Answer:

Explanation:
Add 254 and 536.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,8 tens and 10 ones.So, the sum of 254 and 536 is 790.
7 hundreds 9 tens 0 ones.

On Your Own

Break apart the addends to find the sum.
Question 4.

Answer:

Explanation:
Add 538 and 216.Add the hundreds, tens and ones from the above picture.There are 7 hundreds,4 tens and 14 ones.So, the sum of 538 and 216 is 754.
7 hundreds 5 tens 4 ones.

Question 5

Answer:

Explanation:
Add 425 and 232.Add the hundreds, tens and ones from the above picture.There are 5 hundreds,5 tens and 7 ones.So, the sum of 538 and 216 is 557.
5 hundreds 5 tens 7 ones.

Question 6.

Answer:

Explanation:
Add 849 and 123.Add the hundreds, tens and ones from the above picture.There are 9 hundreds,6 tens and 12 ones.So, the sum of 538 and 216 is 972.
9 hundreds 7 tens 2 ones.

Question 7.
THINK SMARTER+
Mr. Jones has many sheets of paper. He has 158 sheets of blue paper, 100 sheets of red paper, and 231 sheets of green paper. How many sheets of paper does he have?

______ sheets of paper
Answer:

Explanation:
Add 158,100 and 231.Add the hundreds, tens and ones from the above picture.There are 4 hundreds,8 tens and 9 ones.So, the sum of 158,100 and 231 is 489.
4 hundreds 8 tens 9 ones.

Problem Solving • Applications

Question 8.
GO DEEPER
Wesley added in a different way.

Answer:

Explanation:
As in the above example add hundreds,tens and ones seperately and the sum of hundreds,tens and ones is 786.
7 hundreds 8 tens 6 ones

Question 9.
THINK SMARTER
There are 376 children at one school. There are 316 children at another school. How many children are at the two schools?

Select one number from each column to solve the problem.
Answer:

Explanation:
Add 376 and 316.Add the hundreds, tens and ones from the above picture.There are 6 hundreds,8 tens and 12 ones.So, the sum of 376 and 316 is 692.
6 hundreds 9 tens 2 ones.

TAKE HOME ACTIVITY • Write 347 + 215. Have your child break apart the numbers and then find the sum.

Break Apart 3-Digit Addends Homework & Practice 6.2

Break apart the addends to find the sum.
Question 1.

Answer:

Question 2.

Answer:

Problem Solving
Solve. Write or draw to explain.
Question 3.
There are 126 crayons in a bucket. A teacher puts 144 more crayons in the bucket. How many crayons are in the bucket now?
______ crayons
Answer:

Explanation:
There are 126 crayons in a bucket and the teacher adds 144 more to the bucket.To find the totqal number of crayons in the bucket, Add 126 and 144.Add the hundreds, tens and ones from the above picture.There are 2 hundreds,7 tens and 0 ones.So, the sum of 126 and 144 is 270.Therefore there are total 260 crayons in the bucket.
2 hundreds 6 tens 0 ones.

Question 4.
WRITE
Draw quick pictures and write to explain how to break apart addends to find the sum of 324 + 231.
Answer:

Explanation:
Add 324 and 231.Add the hundreds, tens and ones from the above picture.There are 5 hundreds,5 tens and 5 ones.So, the sum of 324 and 231 is 555.
5 hundreds 5 tens 5 ones.

Lesson Check
Question 1.
What is the sum?

Answer:

Explanation:
Add 218 and 145.Add the hundreds, tens and ones from the above picture.There are 3 hundreds,5 tens and 13 ones.So, the sum of 218 and 145 is 363.
3 hundreds 6 tens 3 ones.

Question 2.
What is the sum?

Answer:

Explanation:
Add 664 and 223.Add the hundreds, tens and ones from the above picture.There are 8 hundreds,8 tens and 7 ones.So, the sum of 664 and 223 is 887.
8 hundreds 8 tens 7 ones.

Spiral Review
Question 3.
Ang found 19 berries and Barry found 21 berries. How many berries did they find altogether?
19 + 21 = ______ berries
Answer:

Explanation:
Ang found 19 berries and Barry found 21 berries.Add 19 and 21.There are 3 tens and 10 ones in the above picture.So, the sum of 19 and 21 is 40.
4 tens and 0 ones.

Question:
Write a subtraction fact related to 9 + 6 = ______
Answer:
20-5=15

Explanation:
In the above question the sum of 9 and 6 is 15.So, the subtraction fact for 15 is 20-5=15.

Question 5.
There are 25 goldfish and 33 betta fish. How many fish are there?
25 + 33 = _____ fish
Answer:

Explanation:
There are 25 goldfish and 33 betta fish.Add 25 and 33.Add the tens and ones from the above picture.There are 5 tens and 8 ones.So the sum of

Question 6.
Subtract 16 from 41. What is the difference?

Answer: 25

Lesson 6.3 3-Digit Addition: Regroup Ones

Essential Question When do you regroup ones in addition?

Listen and Draw

Use to model the problem. Draw quick pictures to show what you did.

MATHEMATICAL PRACTICES
Describe how you modeled the problem.
Answer:

Explanation:
To find the sum of 213 and 356. There are 5 hundreds,6 tens and 9 ones in the above picture. So, the sum of 213 and 356 is 569.5 hundreds 6 tens 9 ones.

Model and Draw

Share and Show

Write the sum.
Question 1.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 328 and 134 is 462.

Chapter 6 Review Test Go Math 2nd Grade Question 2.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately without regrouping.The sum of 445 and 23 is 468.

On Your Own

Write the sum.
Question 3.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately without regrouping.The sum of 526 and 103 is 629.

Question 4.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 348 and 19 is 367.

Question 5.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 628 and 347 is 975.

Question 6.

Answer:

Question 7.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 562 and 329 is 891.

Question 8.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 147 and 125 is 272.

Question 9.
THINK SMARTER
On Thursday, there were 326 visitors at the zoo. There were 200 more visitors at the zoo on Friday than on Thursday. How many visitors were at the zoo on both days?

______ visitors
Answer:

Explanation:
In the above picture the ones,tens and hundreds are added separately without regrouping.The sum of 326 and 200 is 526.

Problem Solving • Applications

Solve. Write or draw to explain.
Question 10.
MATHEMATICAL PRACTICE Model with Mathematics
The gift shop is 140 steps away from the zoo entrance. The train stop is 235 steps away from the gift shop. How many total steps is this?

______ steps
Answer:

Explanation:
In the above picture the ones,tens and hundreds are added separately without regrouping.The sum of 140 and 235is 375.

Go Math Answer Key Grade 2 Chapter 6 Question 11.
THINK SMARTER
Katina’s class used 249 noodles to decorate their bulletin board. Gunter’s class used 318 noodles. How many noodles did the two classes use?
________ noodles
Did you have to regroup to solve? Explain.
Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 249 and 318 is 567.

TAKE HOME ACTIVITY • Ask your child to explain why he or she regrouped in only some of the problems in this lesson.

3-Digit Addition: Regroup Ones Homework & Practice 6.3

Write the sum.
Question 1.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 148 and 234 is 382.

Question 2.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 321 and 318 is 639.

Question 3.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 414 and 179 is 593.

Question 4.

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 602 and 258 is 860.

Problem Solving
Solve. Write or draw to explain.
Question 5.
In the garden, there are 258 yellow daisies and 135 white daisies. How many daisies are in the garden altogether?
______ daisies
Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 258 and 135 is 393.

Question 6.
WRITE
Find the sum of 136 + 212. Explain why you did or did not regroup.
Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately without regrouping.The sum of 136 and 212 is 348.

Leson Check
Question 1.
What is the sum?

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 435 and 146 is 581.

Question 2.
What is the sum?

Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 436 and 306 is 742.

Spiral Review
Question 3.
What is the difference?
9 – 4 = _______
Answer:

Explanation:
In the above picture there are 9 ones.Subtract 4 ones from ir.There are 5 ones remained after subracting.Therefore the difference of 9 and 4 is 5.

Question 4.
What is the sum?

Answer:

Explanation:
There are 13 tens and 11 ones in the above picture.Regroup 11 ones as 1 tens 1 ones.Add the tens and ones.Therefore there are 14 tens and 1 ones.Regroup 14 tens as 1 hundreds 4 tens.So,the sum of 82 and 59 is 1 hundreds 4 tens 1 ones.

Question 5.
What is the sum?
26 + 7 = ____
Answer:

Explanation:
There are 2 tens and 13 ones in the above picture.regroup 13 ones as 1 tens 3 ones.Add the tens and ones.Therefore the sum of 26 and 7 is 33

Question 6.
Add 243 and 132. How many hundreds, tens, and ones are there in all?
______ hundreds _____ tens _____ ones
Answer:

Explanation:
In the above picture the ones,tens and hundreds are added seperately by regrouping the ones.The sum of 243 and 132 is 375.

Lesson 6.4 3-Digit Addition: Regroup Tens

Essential Question When do you regroup tens in addition?

Listen and Draw

Use to model the problem. Draw quick pictures to show what you did.

Answer:

MATHEMATICAL PRACTICES
Explain how your quick pictures show what happened in the problem.
Answer:

Model and Draw

Answer:

Share and Show

Write the sum.
Question 1.

Answer:

Question 2.

Answer:

Second Grade Go Math 3 Digit Addition with Answers Question 3.

Answer:

On Your Own

Write the sum.
Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

Question 7.

Answer:

Question 8.

Answer:

Question 9.

Answer:

2nd Grade Answer Key Go Math Subtraction with Renaming Question 10.
GO DEEPER
In a bowling game, Jack scored 116 points and 124 points. Hal scored 128 points and 134 points. Who scored more points? How many more points were scored?
_____ ______ more points
Answer:

MATHEMATICAL PRACTICE Attend to Precision
Rewrite the numbers. Then add.
Question 11.
760 + 178

Answer:

Question 12.
216 + 346

Answer:

Question 13.
423 + 285

Answer:

Problem Solving • Applications
Question 14.
THINK SMARTER
These lists show the pieces of fruit sold. How many pieces of fruit did Mr. Olson sell?

_______ pieces of fruit
Answer:
257 + 281 = 538 pieces of fruit

Question 15.
GO DEEPER
Who sold more pieces of fruit?
_______________
How many more?
_______ more pieces of fruit
Answer:
Mr. Olsan sold more fruits than Mr. Lee
314 + 229 = 443
538 – 443 = 95

Question 16.
THINK SMARTER
At the city park theater, 152 people watched the morning play. Another 167 watched the afternoon play.
How many people watched the two plays? ______ people
Fill in the bubble next to each true sentence about how to solve the problem.

Answer: Option C

TAKE HOME ACTIVITY • Have your child choose a new combination of two fruits on this page and find the total number of pieces of the two types of fruit.

3-Digit Addition: Regroup Tens Homework & Practice 6.4

Write the sum.
Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

Problem Solving
Solve. Write or draw to explain.
Question 7.
There are 142 blue toy cars and 293 red toy cars at the toy store. How many toy cars are there?
_______ toy cars
Answer:
Given,
There are 142 blue toy cars and 293 red toy cars at the toy store.
To find the total number of toy cars we have to add blue cars and red cars.
142 + 293 = 435
Thus 435 toy cars are there.

Question 8.
WRITE
Find the sum of 362 + 265. Explain why you did or did not regroup.
Answer: 362 + 265 = 627

Lesson Check
Question 1.
What is the sum?

Answer:

Question 2.
Annika has 144 pennies and Yahola has 284 pennies. How many do they have altogether?

Answer:
Given,
Annika has 144 pennies and Yahola has 284 pennies.
144 + 284 = 428
Annika and Yahola altogether has 428 pennies.

Spiral Review
Question 3.
What is the sum?

Answer:

Question 4.
What is the sum?

Answer:

Question 5.
Francis had 8 toy cars, then his brother gave him 9 more. How many toy cars does Francis have now?
8 + 9 = ______ cars
Answer: 17 cars

Explanation:
Given,
Francis had 8 toy cars, then his brother gave him 9 more.
8 + 9 = 17
Francis has 17 toy cars now.

Question 6.
What is the difference?

Answer:
82
-34
48

Lesson 6.5 Addition: Regroup Ones and Tens

Essential Question How do you know when to regroup in addition?

Listen and Draw

Use mental math. Write the sum for each problem.

10 + 30 + 40 = _____
100 + 400 + 200 = _____
10 + 50 + 40 = _____
600 + 300 = _____
Answer:

Explanation:
Add the tens digits and hundreds digits in the above sums.

Explanation:
Add the tens digits and the hundreds digits in the above sums.

MATHEMATICAL PRACTICES
Analyze Were some problems easier to solve than other problems? Explain.
Answer:

Share and Show

Write the sum.
Question 1.

Answer:

Explanation:
4 ones+ 9 ones=13 ones
1 ten + 8 tens +2 tens=11 tens
1 hundred + 1 hundred + 3 hundreds=5 hundreds.

Go Math Grade 2 Chapter 6 Review Test Answer Key Question 2.

Answer:

Explanation:
6 ones+ 8 ones=14 ones
1 ten + 4 tens +7 tens=12 tens
1 hundred + 5 hundred + 2 hundreds=8 hundreds.

Question 3.

Answer:

Explanation:
7 ones+ 3 ones=10 ones
1 ten + 2 tens +5 tens=11 tens
3 hundreds + 3 hundreds=6 hundreds.

Question 4.

Answer:

Explanation:
4 ones+ 2 ones=6 ones
3 tens +5 tens=8 tens
2 hundred + 1 hundreds=3 hundreds.

Question 5.

Answer:

Explanation:
5 ones+ 2 ones=7 ones
7 tens +7 tens=14 tens
1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Question 6.

Answer:

Explanation:
9 ones+ 3 ones=12 ones
1 ten + 8 tens +2 tens=11 tens
1 hundred + 1 hundred + 6 hundreds=8 hundreds.

On Your Own

Write the sum.
Question 7.

Answer:

Explanation:
4 ones+ 1 one=5 ones
7 tens +8 tens=15 tens
1 hundred + 5 hundreds + 2 hundreds=8 hundreds.

Question 8.

Answer:

Explanation:
6 ones+ 3 ones=9 ones
1 ten + 8 tens =9 tens
4 hundreds + 4 hundreds=8 hundreds.

Question 9.

Answer:

Explanation:
6 ones+ 7 ones=13 ones
1 ten + 4 tens +9 tens=14 tens
1 hundred + 3 hundreds + 5 hundreds=9 hundreds.

Question 10.

Answer:

Explanation:
5 ones+ 3 ones=8 ones
6 tens +8 tens=14 tens
1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Question 11.

Answer:

Explanation:
7 ones+ 9 ones=16 ones
1 ten + 4 tens +0 tens=5 tens
6 hundred + 1 hundreds=5 hundreds.

Question 12.

Answer:

Explanation:
6 ones+ 6 ones=12 ones
1 ten + 4 tens +5 tens=10 tens
1 hundred + 5 hundreds + 3 hundreds=9 hundreds.

Question 13.

Answer:

Explanation:
8 ones+ 1 ones=9 ones
4 tens +3 tens=7 tens
3 hundreds + 6 hundreds=9 hundreds.

Question 14.

Answer:

Explanation:
5 ones+ 9 ones=14 ones
1 ten + 5 tens +3 tens=9 tens
4 hundreds + 1 hundred=5 hundreds.

Question 15.

Answer:

Explanation:
3 ones+ 5 ones=8 ones
6 tens +4 tens=10 tens
1 hundred + 5 hundreds + 2 hundreds=8 hundreds.

Question 16.
THINK SMARTER
Miko wrote these problems. What are the missing digits?

Answer:

TAKE HOME ACTIVITY • Have your child explain how to solve 236 + 484.
Answer:

Explanation:
6 ones+ 4 ones=10 ones
1 ten + 3 tens +8 tens=12 tens
1 hundred + 2 hundreds + 4 hundreds=7 hundreds.

Addition: Regroup Ones and Tens Homework & Practice 6.5

Write the sum.
Question 1.

Answer:

Explanation:
7 ones+ 5 ones=12 ones
1 ten + 4 tens +3 tens=8 tens
5 hundreds + 4 hundreds=9 hundreds.

Question 2.

Answer:

Explanation:
7 ones+ 4 ones=11 ones
1 ten + 6 tens +8 tens=15 tens
1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

Question 3.

Answer:

Explanation:
5 ones+ 6 ones=11 ones
1 ten + 8 tens +5 tens=14 tens
1 hundred + 4 hundred + 4 hundreds=5 hundreds.

Question 4.

Answer:

Explanation:
7 ones+ 6 ones=13 ones
1 ten + 8 tens +0 tens=9 tens
1 hundred + 3 hundreds=4 hundreds.

Question 5.

Answer:

Explanation:
7 ones+ 8 ones=15 ones
1 ten + 4 tens +2 tens=7 tens
6 hundreds + 1 hundred=7 hundreds.

Question 6.

Answer:

Explanation:
4 ones+ 9 ones=13 ones
1 ten + 8 tens +2 tens=11 tens
1 hundred + 1 hundred + 3 hundreds=5 hundreds.

Problem Solving
Solve. Write or draw to explain.
Question 7.
Saul and Luisa each scored 167 points on a computer game. How many points did they score together?
_______ points
Answer:

Explanation:
Saul and luisa has 167 points each on a computer game.Add points of both saul and luisa.There are 3 hundreds 2 tens and 14 ones.So, the sum of 167 and 167 is 3 hundred 3 tens and 4 ones.
7 ones+ 7 ones=14 ones
1 ten + 6 tens +6 tens=13 tens
1 hundred + 1 hundred + 1 hundred=3 hundreds.

Question 8.
WRITE
Write the addition problem for 275 plus 249 and find the sum. Then draw quick pictures to check your work.
Answer:

Explanation:
5 ones+ 9 ones=14 ones
1 ten + 7 tens +4 tens=12 tens
1 hundred + 2 hundreds + 2 hundreds=5 hundreds.

Lesson Check
Question 1.
What is the sum?

Answer:

Explanation:
8 ones+ 2 ones=10 ones
1 ten + 4 tens +7 tens=12 tens
1 hundred + 3 hundreds + 2 hundreds=6 hundreds.

2nd Grade Go Math Grade 2 Chapter 6 Test Question 2.
What is the sum?

Answer:

Explanation:
3 ones+ 7 ones=10 ones
1 ten + 2 tens +1 tens=11 tens
1 hundred + 2 hundreds=3 hundreds.

Spiral Review
Question 3.
Which addition fact has the same sum as 9 + 4.
10 + _____
Answer:
9+4=13
10+3=13

Explanation:
The sum of 9 and 4 is 13. So, if we add 3 to 10 we get the same sum 13. Therefore the addition fact that has the same sum as 9+4 is 10+3.

Question 4.
What is the sum?

Answer:

Explanation:
2 ones+ 5 ones + 6 ones=13 ones
1 ten + 3 tens +1 tens +4 tens=9 tens

Question 5.
Add 29 and 35. What is the sum?

Answer: 5 tens and 14 ones
50 + 14 = 64

Question 6.
Tom had 25 pretzels. He gave away 12 pretzels. How many pretzels does Tom have left?
25 – 12 = ______ pretzels
Answer:

Explanation:
There are 25 blocks in the above picture.Subtract 1 tens and 2 ones from the above picture.Therefore 13 blocks are left.
So, the difference of 25 and 12 is 13.

3-Digit Addition and Subtraction Mid-Chapter Checkpoint

Concepts and Skills

Break apart the addends to find the sum.
Question 1.

Answer:

Explanation:
Add 567 and 324. Add the hundreds, tens and ones from the above picture. There are 8 hundreds,8 tens and 11 ones. So, the sum of 567 and 324 is 363.
8 hundreds 9 tens 1 ones

write the sum.

Question 2.

Answer:

Explanation:
8 ones+ 6 ones=14 ones
1 ten + 4 tens +4 tens=9 tens
2 hundreds + 3 hundreds=5 hundreds.

Question 3.

Answer:

Explanation:
0 ones+ 4 ones=4 ones
1 ten +6 tens=11 tens
6 hundreds + 2 hundreds=8 hundreds.

Question 4.

Answer:

Explanation:
1 ones+ 7 ones=8 ones
9 tens +3 tens=12 tens
1 hundred + 3 hundreds + 5 hundreds=9 hundreds.

Question 5.
THINK SMARTER
There are 148 small sand dollars and 119 large sand dollars on the beach. How many sand dollars are on the beach?

______ sand dollars
Answer:

Explanation:
8 ones+ 9 ones=17 ones
1 ten + 4 tens +1 tens=6 tens
1 hundred + 1 hundred=2 hundreds.

Lesson 6.6 Problem Solving • 3-Digit Subtraction

Essential Question How can making a model help when solving subtraction problems?

There were 436 people at the art show. 219 people went home. How many people stayed at the art show?

Unlock the Problem

Show how to solve the problem.
Make a model. Then draw a quick picture of your model.
______ people

Answer:
Given,
There were 436 people at the art show. 219 people went home.
436 – 219 = 217

HOME CONNECTION • Your child used a model and a quick picture to represent and solve a subtraction problem.

Try Another Problem

Make a model to solve. Then draw a quick picture of your model.
Question 1.
There are 532 pieces of art at the show. 319 pieces of art are paintings. How many pieces of art are not paintings?
______ pieces of art
Answer:
Given,
There are 532 pieces of art at the show.
319 pieces of art are paintings.
532 – 319 = 213
213 pieces of art are not paintings

Question 2.
245 children go to the face-painting event. 114 of the children are boys. How many of the children are girls?
_______ girls
Answer:
Given,
245 children go to the face-painting event. 114 of the children are boys.
245 – 114 = 132 girls
There are 132 girls.

MATHEMATICAL PRACTICES
Explain how you solved the first problem on this page.

Share and Show

Make a model to solve. Then draw a quick picture of your model.
Question 3.
There were 237 books on the table. Miss Jackson took 126 books off the table. How many books were still on the table?

______ books
Answer:
Given,
There were 237 books on the table. Miss Jackson took 126 books off the table.
237 – 126 = 111 books were still on the table.

Second Grade Maths Answer Key Sentence Check 2 Chapter 6 Question 4.
There were 232 postcards on the table. The children used 118 postcards. How many postcards were not used?

_______ postcards
Answer:
Given,
There were 232 postcards on the table.
The children used 118 postcards.
232 – 118 = 114 postcards

Question 5.
THINK SMARTER
164 children and 31 adults saw the movie in the morning. 125 children saw the movie in the afternoon. How many fewer children saw the movie in the afternoon than in the morning?

______ fewer children
Answer:
Given,
164 children and 31 adults saw the movie in the morning.
125 children saw the movie in the afternoon.
164 – 125 = 39 fewer children.

On Your Own

MATHEMATICAL PRACTICE Make Sense of Problems
Question 6.
There were some grapes in a bowl. Clancy’s friends ate 24 of the grapes. Then there were 175 grapes in the bowl. How many grapes were in the bowl before?

______ grapes
Answer:
Given,
There were some grapes in a bowl. Clancy’s friends ate 24 of the grapes.
Then there were 175 grapes in the bowl.
175 + 24 = 199 grapes

Question 7.
THINK SMARTER
At Gregory’s school, there are 547 boys and girls. There are 246 boys. How many girls are there?
Draw a quick picture to solve.

Answer:
Given,
At Gregory’s school, there are 547 boys and girls. There are 246 boys.
547 – 246 = 301 girls
Thus there are 301 girls.

TAKE HOME ACTIVITY • Ask your child to choose one of the problems in this lesson and solve it in a different way.

Problem Solving • 3-Digit Subtraction Homework & Practice 6.6

Make a model to solve. Then draw a quick picture of your model.
Question 1.
On Saturday, 770 people went to the snack shop. On Sunday, 628 people went. How many more people went to the snack shop on Saturday than on Sunday?
______ more people
Answer:
Given,
On Saturday, 770 people went to the snack shop. On Sunday, 628 people went.
770 -628 = 42 more people

Question 2.
There were 395 lemon ice cups at the snack shop. People bought 177 lemon ice cups. How many lemon ice cups are still at the snack shop?
______ cups
Answer:
Given,
There were 395 lemon ice cups at the snack shop. People bought 177 lemon ice cups.
395 – 177 = 218 cups

Question 3.
There were 576 bottles of water at the snack shop. People bought 469 bottles of water. How many bottles of water are at the snack shop now?
_______ bottles
Answer:
Given,
There were 576 bottles of water at the snack shop. People bought 469 bottles of water.
576 – 469 = 107 bottles

Question 4.
WRITE
Draw quick pictures to show how to subtract 314 and 546.
Answer: 546 – 314 = 232

Lesson Check
Question 1.
There are 278 math and science books. 128 of them are math books. How many science books are there?
______ books
Answer:
Given,
There are 278 math and science books. 128 of them are math books.
278 – 128 = 150 books
There are 150 science books.

Question 2.
A book has 176 pages. Mr. Roberts has read 119 pages. How many pages does he have left to read?
_____ pages
Answer:
Given,
A book has 176 pages. Mr. Roberts has read 119 pages.
176 – 119 = 57 pages
57 pages are left to read.

Spiral Review
Question 3.
What is the sum?
1 + 6 + 2 = _____
Answer: add the number in ones place = 9

Question 4.
What is the difference?
54 – 8 = _____
Answer: The difference of the two numbers 54 and 8 are 46

Question 5.
What is the sum?

Answer: 530

Question 6.
What is the sum?

Answer: 38

Lesson 6.7 3-Digit Subtraction: Regroup Tens

Essential Question When do you regroup tens in subtraction?

Listen and Draw

Use to model the problem.
Draw a quick picture to show what you did.

MATHEMATICAL PRACTICES
Describe what to do when there are not enough ones to subtract from.
Answer:

Share and Show

Solve. Write the difference.
Question 1.

Answer: 105

Question 2.

Answer:

On Your Own

Solve. Write the difference.
Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

Question 7.
GO DEEPER
A bookstore has 148 books about people and 136 books about places. Some books were sold. Now there are 137 books left. How many books were sold?
_______ books
Answer:
Given,
A bookstore has 148 books about people and 136 books about places.
148 + 136 = 284 books
Some books were sold. Now there are 137 books left.
284 – 137 = 147 books
147 books were sold.

Question 8.
THINK SMARTER
There were 287 music books and 134 science books in the store. After some books were sold, there are 159 books left. How many books were sold?

Answer:
Given,
There were 287 music books and 134 science books in the store.
287 + 134 = 421
After some books were sold, there are 159 books left.
421 – 159 = 262 books
Thus 262 books were sold.

Problem Solving • Applications

MATHEMATICAL PRACTICE Make Sense of Problems
Solve. Write or draw to explain.
Question 9.
There are 235 whistles and 42 bells in the store. Ryan counts 128 whistles on the shelf. How many whistles are not on the shelf?

______ whistles
Answer:
Given,
There are 235 whistles and 42 bells in the store. Ryan counts 128 whistles on the shelf.
235 + 42 = 277 whistles
277 – 128 = 149 whistles
Thus 149 whistles are not on the shelf.

Question 10.
THINK SMARTER
Dr. Jackson had 326 stamps.
He sells 107 stamps. How many stamps does he have now? ______ stamps
Would you do these things to solve the problem?
Choose Yes or No.

Answer:
Given,
Dr. Jackson had 326 stamps. He sells 107 stamps.
326 – 107 = 219

TAKE HOME ACTIVITY • Ask your child to explain why he or she regrouped in only some of the problems in this lesson.

3-Digit Subtraction: Regroup Tens Homework & Practice 6.7

Solve. Write the difference.
Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Problem Solving
Solve. Write or draw to explain.
Question 5.
There were 985 pencils. Some pencils were sold. Then there were 559 pencils left. How many pencils were sold?
______ pencils
Answer:
Given,
There were 985 pencils. Some pencils were sold. Then there were 559 pencils left.
985 – 559 = 426
426 pencils were sold.

Question 6.
WRITE
Choose one exercise from above. Draw quick pictures to check your work.
Answer:

Lesson Check
Question 1.
What is the difference?

Answer:

Question 2.
What is the difference?

Answer:

Spiral Review
Question 3.
What is the difference?
45 – 7 = _____
Answer: 38

Question 4.
Leroy has 11 cubes. Jane has 15 cubes. How many cubes do they have altogether?
______ cubes
Answer:
Given,
Leroy has 11 cubes. Jane has 15 cubes.
11 + 15 = 26 cubes
Leroy and Jane together has 26 cubes.

Question 5.
Mina puts 5 flowers in each vase. How many flowers will she put in 3 vases?
______ flowers
Answer:
Given,
Mina puts 5 flowers in each vase.
5 × 3 = 15 flowers
Thus Mina put 15 flowers in 3 vases.

Go Math Grade 2 Workbook Pdf Chapter 6 Review Answers Math Question 6.
Mr. Hill had 428 pencils. He gave away 150 pencils. How many pencils did he keep?
______ pencils
Answer:
Given,
Mr. Hill had 428 pencils. He gave away 150 pencils.
428 – 150 = 278 pencils
Thus he keep 278 pencils.

Lesson 6.8 3-Digit Subtraction: Regroup Hundreds

Essential Question When do you regroup hundreds in subtraction?

Listen and Draw

Draw quick pictures to show the problem

MATHEMATICAL PRACTICES
Describe what to do when there are not enough tens to subtract from.
Answer:

Share and Show

Solve. Write the difference.
Question 1.

Answer:

Question 2.

Answer:

On Your Own

Solve. Write the difference.
Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

Question 7.

Answer:

Question 8.

Answer:

MATHEMATICAL PRACTICE Make Arguments
Question 9.
Choose one exercise above. Describe the subtraction that you did. Be sure to tell about the values of the digits in the numbers.
______________________
_______________________
Answer:

Problem Solving • Applications

Question 10.
THINK SMARTER
Sam made two towers. He used 139 blocks for the first tower. He used 276 blocks in all. For which tower did he use more blocks? ______

Explain how you solved the problem.
Answer:

Question 11.
THINK SMARTER
This is how many points each class scored in a math game.

How many more points did Mr. Chang’s class score than Mr. Pagano’s class? Draw a picture and explain how you found your answer.
_______ more points
Answer:

TAKE HOME ACTIVITY • Have your child explain how to find the difference for 745 − 341.

3-Digit Subtraction: Regroup Hundreds Homework & Practice 6.8

Solve. Write the difference.
Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Problem Solving
Solve. Write or draw to explain.
Question 5.
There were 537 people in the parade. 254 of these people were playing an instrument. How many people were not playing an instrument?
_______ people
Answer:

Question 6.
WRITE
Write the subtraction problem for 838 – 462 and find the difference. Then draw quick pictures to check your difference.
Answer:

Lesson Check
Question 1.
What is the difference?

Answer:

Question 2.
What is the difference?

Answer:

Spiral Review
Question 3.
What is the difference?
52 – 15 = ______
Answer:

Question 4.
Wallace has 8 crayons and Alma has 7. How many do the have together?
8 + 7 = _____ crayons
Answer:

Question 5.
What is the sum?

Answer:

Question 6.
Mrs. Lin’s class read 392 books in February. Mr. Hook’s class read 173 books. How many more books did Mrs. Lin’s class read?

Answer:

Lesson 6.9 Subtraction: Regroup Hundreds and Tens

Essential Question How do you know when to regroup in subtraction?

Listen and Draw

Use mental math. Write the difference for each problem.

90 − 40 = _____
700 − 500 = _____
70 − 60 = _____
800 − 300 = _____
Answer:

Explanation:
Subtract the tens amd hundreds from the above sums to find the difference.

Explanation:
Subtract the tens and hundreds from the above sums to find the difference.

MATHEMATICAL PRACTICES
Were some problems easier to solve than other problems? Explain.
Answer:
Yes some problems wre easy to solve than the other problems as theur was no need of any regrouping for some problems.

Share and Show

Solve. Write the difference.
Question 1.

Answer:

Explanation:
Regroup 2 tens 1 ones as 1 tens 11 ones.Subtract the ones.
Regroup 4 hundreds 1 tens as 3 hundreds 11 tens.Subtract the tens
Subtract the hundreds.

Question 2.

Answer:

Explanation:
Subtract the ones.
Regroup 1 hundreds 7 tens as 1 hundreds 17 tens.Subtract the tens
Subtract the hundreds.

Question 3.

Answer:

Explanation:
Regroup 4 tens 6 ones as 3 tens 16 ones.Subtract the ones.
Regroup 5 hundreds 3 tens as 4 hundreds 13 tens.Subtract the tens
Subtract the hundreds.

Question 4.

Answer:

Explanation:
Subtract the hundreds,tens and ones as there is no need of regrouping.

Question 5.

Answer:

Explanation:
Regroup 4 tens 7 ones as 3 tens 17 ones.Subtract the ones.
Regroup 7 hundreds 3 tens as 6 hundreds 13 tens.Subtract the tens
Subtract the hundreds.

Question 6.

Answer:

Explanation:
Subtract the ones.
Regroup 9 hundreds 3 tens as 8 hundreds 13 tens.Subtract the tens
Subtract the hundreds.

On Your Own

Solve. Write the difference.
Question 7.

Answer:

Explanation:
Regroup 4 tens 2 ones as 3 tens 12 ones.Subtract the ones.
Subtract the tens
Subtract the hundreds.

Question 8.

Answer:

Explanation:
Subtract the ones.
Regroup 4 hundreds 6 tens as 3 hundreds 16 tens. Subtract the tens
Subtract the hundreds.

Chapter 6 Grade 2 Go Math Lesson 6.8 Subtraction with Renaming Question 9.

Answer:

Explanation:
Regroup 5 tens 5 ones as 4 tens 15 ones. Subtract the ones.
Regroup 4 hundreds 1 tens as 3 hundreds 1 tens. Subtract the tens
Subtract the hundreds.

Question 10.

Answer:

Explanation:
Subtract the ones.
Regroup 6 hundreds 5 tens as 5 hundreds 15 tens.Subtract the tens
Subtract the hundreds.

Question 11.

Answer:

Explanation:
Regroup 2 tens 1 ones as 1 tens 11 ones.Subtract the ones.
Regroup 5 hundreds 1 tens as 4 hundreds 11 tens.Subtract the tens
Subtract the hundreds.

Question 12.

Answer:

Explanation:
Regroup 5 tens 8 ones as 4 tens 18 ones.Subtract the ones.
Subtract the tens
Subtract the hundreds.

Question 13.

Answer:

Explanation:
Regroup 4 tens 2 ones as 3 tens 12 ones.Subtract the ones.
Regroup 5 hundreds 3 tens as 4 hundreds 13 tens.Subtract the tens
Subtract the hundreds.

Question 14.

Answer:

Explanation:
Subtract the ones.
Regroup 8 hundreds 2 tens as 7 hundreds 12 tens.Subtract the tens
Subtract the hundreds.

Question 15.

Answer:

Explanation:
Regroup 4 tens 7 ones as 3 tens 17 ones.Subtract the ones.
Regroup 9 hundreds 3 tens as 8 hundreds 13 tens.Subtract the tens
Subtract the hundreds.

Question 16.
THINK SMARTER
Alex wrote these problems. What are the missing digits?

Answer:

Explanation:
The missing numbers in the first sum are 5 and 5 because only when the numbers are 5 tens and 5 ones if we regroup them they become 4 tens and 15 ones.
The missing numbers in the second sum are 8, 3 and 6 because only when the numbers are 8 hundreds and 3 tens if we regroup them they become 7 hundreds and 13 ones.And 6 ones because if we subtract only 6 ones from 7 ones we get the answer as 1 ones.

Problem Solving • Applications

Question 17.
GO DEEPER
This is how Walter found the difference for 617 − 350.

Find the difference for 843 − 270 using Walter’s way.
Answer:

Explanation:
As shown in the above picture the difference between 270 and 300 is 30, 800 and 300 is 500 and 843 and 800 is 43.So, when we add 30,500 and 43 is sum wiil be 573.Therefore the difference between 543 and 270 is 573.

Question 18.
MATHEMATICAL PRACTICE Analyze
There are 471 children at Caleb’s school. 256 children ride buses to get to school.

How many children do not ride buses to get to school?
_____ children
Answer:

Explanation:
Regroup 7 tens 1 ones as 6 tens 11 ones.Subtract the ones.
Subtract the tens
Subtract the hundreds.

Question 19.
THINK SMARTER
Mrs. Herrell had 427 pinecones. She gave 249 pinecones to her children.
How many pinecones does she still have?
_______ pinecones
Answer:

Explanation:
Regroup 2 tens 7 ones as 1 tens 17 ones.Subtract the ones.
Regroup 4 hundreds 1 tens as 3 hundreds 11 tens.Subtract the tens
Subtract the hundreds.

TAKE HOME ACTIVITY • Ask your child to find the difference when subtracting 182 from 477.

Explanation:
Subtract the ones.
Regroup 4 hundreds 7 tens as 3 hundreds 17 tens.Subtract the tens
Subtract the hundreds.

Subtraction: Regroup Hundreds and Tens Homework & Practice 6.9

Solve. Write the difference.
Question 1.

Answer:

Explanation:
Regroup 1 tens 6 ones as 0 tens 16 ones.Subtract the ones.
Regroup 8 hundreds 0 tens as 7 hundreds 10 tens.Subtract the tens
Subtract the hundreds.

Question 2.

Answer:

Explanation:
Regroup 0 tens 2 ones as 9 tens 12 ones.Subtract the ones.
Regroup 9 hundreds 9 tens as 8 hundreds 19 tens.Subtract the tens
Subtract the hundreds.

Question 3.

Answer:

Explanation:
Regroup 9 tens 6 ones as 8 tens 16 ones.Subtract the ones.
Subtract the tens
Subtract the hundreds.

Problem Solving
Solve.
Question 4.
Mia’s coloring book has 432 pages. She has already colored 178 pages. How many pages in the book are left to color?
______ pages
Answer:

Explanation:
Regroup 3 tens 2 ones as 2 tens 12 ones.Subtract the ones.
Regroup 4 hundreds 2 tens as 3 hundreds 12 tens.Subtract the tens
Subtract the hundreds.

Question 5.
WRITE
Draw quick pictures to show how to subtract 546 from 735.
Answer:

Explanation:
Regroup 3 tens 5 ones as 2 tens 15 ones.Subtract the ones.
Regroup 7 hundreds 2 tens as 6 hundreds 12 tens.Subtract the tens
Subtract the hundreds.

Lesson Check
Question 1.
What is the difference?

Answer:

Explanation:
Subtract the ones.
Regroup 3 hundreds 4 tens as 2hundreds 14 tens.Subtract the tens
Subtract the hundreds.

Question 2.
What is the difference?

Answer:

Explanation:
Regroup 3 tens 6 ones as 2 tens 16 ones.Subtract the ones.
Regroup 3 hundreds 2 tens as 2 hundreds 12 tens.Subtract the tens
Subtract the hundreds.

Spiral Review
Question 3.
What is the sum?

Answer:

Explanation:
6 ones + 3 ones=19 ones
1 tens +4 tens + 3 tens=7 tens
2 hundreds + 5 hundreds=7 hundreds.
7 hundreds 7 tens 9 ones.

Question 4.
What is the difference?

Answer:

Explanation:
Regroup 3 tens 8 ones as 2 tens 18 ones.Subtract the ones.
Subtract the tens

Question 5.
What is the difference?
17 – 9 = _____
Answer: 8
by substracting 17 with 9 we get 8
hence the difference is 8

Question 6.
Lisa had 15 daisies. She gave away 7 daisies. Then she found 3 more daisies. How many daisies does Lisa have now?
15 – 7 + 3 = ______
Answer:
by subtracting 15 with 7 we get 8
then she found 3 more daisies
so add 8 with 3 we get 11
Lisa has 11 daisies

Lesson 6.10 Regrouping with Zeros

Essential Question How do you regroup when there are zeros in the number you start with?

Listen and Draw

Draw or write to show how you solved the problem.
Answer:

MATHEMATICAL PRACTICES
Describe another way that you could solve the problem.
Answer:

Share and Show

Solve. Write the difference.
Question 1.

Answer:

the difference is 49

Question 2.

Answer:

Question 3.

Answer:

On Your Own

Solve. Write the difference.
Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

Question 7.

Answer:

Question 8.

Answer:

Question 9.

Answer:

Question 10.

Answer:

Question 11.

Answer:

Question 12.

Answer:

Question 13.
THINK SMARTER
Miguel has 125 more baseball cards than Chad. Miguel has 405 baseball cards. How many baseball cards does Chad have?

_____ baseball cards
Answer:
by substracting 405 with 125 we get 280
hence 280 baseball cards  Chad have

Problem Solving • Applications

Question 14.
MATHEMATICAL PRACTICE
Analyze Claire has 250 pennies. Some are in a box and some are in her bank. There are more than 100 pennies in each place. How many pennies could be in each place?
_____ pennies in a box
_______ pennies in her bank
Explain how you solved the problem.
________________
_________________
Answer:
Given,
Analyze Claire has 250 pennies. Some are in a box and some are in her bank. There are more than 100 pennies in each place.
There could be 125 pennies in a box
There could be 125 pennies in her bank

Question 15.
THINK SMARTER
There are 404 people at the baseball game. 273 people are fans of the blue team. The rest are fans of the red team. How many people are fans of the red team?
Does the sentence describe how to find the answer?
Choose Yes or No.

There are ________ fans of the red team.
Answer:
Given,
There are 404 people at the baseball game. 273 people are fans of the blue team.
The rest are fans of the red team.
404 – 273 = 131
There are 131 fans of the red team.

TAKE HOME ACTIVITY • Ask your child to explain how he or she solved one of the problems in this lesson.

Regrouping with Zeros Homework & Practice 6.10

Solve. Write the difference.
Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

Question 6.

Answer:

Problem Solving
Solve.
Question 7.
There are 303 students. There are 147 girls. How many boys are there?
_______ boys
Answer:
Given
There are 303 students.
There are 147 girls
to find boys from that 303 students
by subtracting 303 with 147 girls we get 156
hence there are 156 boys

Question 8.
WRITE
Write the subtraction problem 604 – 357. Describe how you will subtract to find the difference.
_______________
________________
Answer:
604
–  357
  247
by subtracting 604 with 357 we get 247
the difference is 247

Lesson Check
Question 1.
What is the difference?

Answer:

the difference is 114

Question 2.
What is the difference?

Answer:
the difference is 138

Spiral Review
Question 3.
What is the sum?

Answer:

by adding 35 with 79 we get 114

Question 4.
There are 555 students at Roosevelt Elementary School and 282 students at Jefferson Elementary. How many students are at the two schools altogether?

Answer:
Given,
There are 555 students at Roosevelt Elementary School and 282 students at Jefferson Elementary.
555 + 282 = 837 students

Question 5.
What is the difference?
10 – 2 = _____
Answer: 8

Question 6.
Gabriel’s goal is to read 43 books this year. So far he has read 11 books. How many books does he have left to meet his goal?

Answer:
Given,
Gabriel’s goal is to read 43 books this year. So far he has read 11 books.
43 – 11 = 32 books

3-Digit Addition and Subtraction Review/Test

Question 1.
Mr. Kent’s art class used 234 craft sticks. Ms. Reed’s art class used 358 craft sticks. How many craft sticks did the two classes use?
______ craft sticks
Answer:
Given,
Mr. Kent’s art class used 234 craft sticks. Ms. Reed’s art class used 358 craft sticks.
234 + 358 = 592 craft sticks
Thus the two classes used 592 craft sticks.

Question 2.
At the library, there are 668 books and magazines. There are 565 books at the library. How many magazines are there?
Circle the number that makes the sentence true.

Answer:
At the library, there are 668 books and magazines. There are 565 books at the library.
668 + 565 = 1233
Thus there are 1233 magazines.

Question 3.
There are 176 girls and 241 boys at school. How many children are at school?

Select one number from each column to solve the problem.
Answer:
176 + 241 = 417
Thus the answer is 4 hundreds 1 ten and 7 ones

Question 4.
THINK SMARTER+
Anna wants to add 246 and 132.
Help Anna solve this problem. Draw quick pictures. Write how many hundreds, tens, and ones in all. Write the number.

_____ hundreds _____ tens _____ ones
_________
Answer:
246 + 132 = 378
3 hundreds 7 tens 8 ones

Question 5.
Mrs. Preston had 513 leaves. She gave 274 leaves to her students. Draw to show how you found your answer.
How many leaves does she still have?
______ leaves
Answer:
Given,
Mrs. Preston had 513 leaves. She gave 274 leaves to her students.
513 – 274 = 239 leaves
Mrs. Preston still has 239 leaves

Question 6.
A farmer has 112 pecan trees and 97 walnut trees. How many more pecan trees does the farmer have than walnut trees?
Fill in the bubble next to all the sentences that describe what you would do.

Answer:
A farmer has 112 pecan trees and 97 walnut trees.
112 – 97 = 15
I would regroup the ones.

Question 7.
Amy has 408 beads. She gives 322 beads to her sister. How many beads does Amy have now?
Does the sentence describe how to find the answer?
Choose Yes or No

Amy has _____ beads.
Answer:
Given,
Amy has 408 beads. She gives 322 beads to her sister.
408 – 322 = 86
Amy has 86 beads.

Question 8.
GO DEEPER
Raul used this method to find the sum 427 + 316.

Use Raul’s method to find this sum.

Describe how Raul solves addition problems.
_____________________
____________________
Answer:

Question 9.
ally scores more points in a game than Ty. Sally uses 900 – 500 to estimate how many more points.
Fill in the bubble next to all the problems she may have been estimating for.

Answer: Option A, Option D has the problems she may have been estimating for.

Question 10.
Use the numbers on the tiles to solve the problem.

Describe how you solved the problem.
___________________________
__________________________
Answer:
2 5 7
+3 4 6
6 0 3

Final Words:

Get the free access to Download Go Math Grade 2 Answer Key Chapter 6 3-Digit Addition and Subtraction pdf. Enhance your math skills by solving the problems given at the end of this chapter.

Go Math Grade 2 Chapter 5 Answer Key Pdf: Go Math Grade 2 Answer Key Chapter 5 2-Digit Subtraction answer key is useful for students who are preparing for their examinations and can download this pdf for free of cost. In this chapter, each and every question was explained in detail which helps students to understand easily. Go Math Grade 2 Answer Key Chapter 5 2-Digit Subtraction explains different types of questions on 2 Digit Subtraction.

2-Digit Subtraction Go Math Grade 2 Chapter 5 Answer Key Pdf

In this chapter, we can see different topics on Break Apart Ones to Subtract, Break Apart Numbers to Subtract, Model Regrouping for Subtraction, Model and Record 2-Digit Subtraction, 2-Digit Subtraction, etc. Those topics were being set up by the mathematical professionals as indicated by the most recent release. Look down this page to get the answers to all the inquiries. Click on the links to look at the subjects shrouded in this Go Math 2nd Grade Chapter 2-Digit Subtraction.

Chapter: 5 – 2-Digit Subtraction

• 2-Digit Subtraction Show What You Know – Page 314
• 2-Digit Subtraction Vocabulary Builder – Page 315
• 2-Digit Subtraction Game: Subtraction Search – Page 316
• 2-Digit Subtraction Vocabulary Game – Page(316A-316B)

Lesson: 1 Algebra • Break Apart Ones to Subtract

• Lesson 5.1 Algebra • Break Apart Ones to Subtract – Page(317-322)
• Algebra • Break Apart Ones to Subtract Homework & Practice 5.1 – Page(321-322)

Lesson: 2 Algebra • Break Apart Numbers to Subtract

• Lesson 5.2 Algebra • Break Apart Numbers to Subtract – Page(323-328)
• Algebra • Break Apart Numbers to Subtract Homework & practice 5.2 – Page(327-328)

Lesson: 3 Model Regrouping for Subtraction

• Lesson 5.3 Model Regrouping for Subtraction – Page(329-334)
• Model Regrouping for Subtraction Homework & Practice 5.3 – Page(333-334)

Lesson: 4 Model and Record 2-Digit Subtraction

• Lesson 5.4 Model and Record 2-Digit Subtraction – Page(335-340)
• Model and Record 2-Digit Subtraction Homework & Practice 5.4 – Page(339-340)

Lesson: 5 2-Digit Subtraction

• Lesson 5.5 2-Digit Subtraction – Page(341-346)
• 2-Digit Subtraction Homework & practice 5.5 – Page(345-346)

Lesson: 6 Practice 2-Digit Subtraction

• Lesson 5.6 Practice 2-Digit Subtraction – Page(347-352)
• Practice 2-Digit Subtraction Homework & Practice 5.6 – Page(351-352)

Mid-Chapter Checkpoint

• 2-Digit Subtraction Mid-Chapter Checkpoint – Page 350

Lesson: 7 Rewrite 2-Digit Subtraction

• Lesson 5.7 Rewrite 2-Digit Subtraction – Page(353-358)
• Rewrite 2-Digit Subtraction Homework & Practice 5.7 – Page(357-358)

Lesson: 8 Add to Find Differences

• Lesson 5.8 Add to Find Differences – Page(359-364)
• Add to Find Differences Homework & practice 5.8 – Page(363-364)

Lesson: 9 Problem Solving • Subtraction

• Lesson 5.9 Problem Solving • Subtraction – Page(365-370)
• Problem Solving • Subtraction Homework & Practice 5.9 – Page(369-370)

Lesson: 10 Algebra • Write Equations to Represent Subtraction

• Lesson 5.10 Algebra • Write Equations to Represent Subtraction – Page(371-376)
• Algebra • Write Equations to Represent Subtraction Homework & Practice 5.10 – Page(375-376)

Lesson: 11 Solve Multistep Problems

• Lesson 5.11 Solve Multistep Problems – Page(377-382)
• Solve Multistep Problems Homework & Practice 5.11 – Page(381-382)
• 2-Digit Subtraction Chapter 5 Review Test – Page(383-386)

Curious about Math

There are hundreds of different kinds of dragonflies. If 52 dragonflies are in a garden and 10 fly away, how many dragonflies are left? How many are left if 10 more fly away?

Answer:
The total number of files left is 32 files.

Explanation:
As there are hundreds of different kinds of dragonflies and if 52 dragonflies are in a garden and 10 flies away, so the number of files left is 52 – 10= 42 files and again there are 10 more flies away. So there will be 42 – 10= 32 files left.

2-Digit Subtraction Show What You Know

Subtraction Patterns
Subtract 2. Complete each subtraction sentence.

Question 1.

Question 2.
6 – __ = ___

Answer:
On subtracting 6 – 2 we will get the result as 4.

Explanation:
By subtracting 2 with 6 we will get the result as 6 – 2= 4.

Question 3.
5 – __ = __

Answer:
On subtracting 5 – 2 we will get the result as 3.

Explanation:
By subtracting 2 with 5 we will get the result as 5 – 2= 3.

Question 4.
4 – ___ = __

Answer:
On subtracting 4 – 2 we will get the result as 2.

Explanation:
By subtracting 2 with 4 we will get the result as 4 – 2= 2.

Question 5.
3 – __ = __

Answer:
On subtracting 3 – 2 we will get the result as 1.

Explanation:
By subtracting 2 with 3 we will get the result as 3 – 2= 1.

Question 6.
2 – _ = __

Answer:
On subtracting 2 – 2 we will get the result as 0.

Explanation:
By subtracting 2 with 2 we will get the result as 2 – 2= 0.

Subtraction Facts
Write the difference.

Question 7.

Answer:
On subtracting 8 – 5 we will get the result as 3.

Explanation:
By subtracting 5 with 8 we will get the result as 8 – 5= 3.

Question 8.

Answer:
On subtracting 14 – 6 we will get the result as 8.

Explanation:
By subtracting 6 with 14 we will get the result as 14 – 6= 8.

Question 9.

Answer:
On subtracting 9 – 6 we will get the result as 3.

Explanation:
By subtracting 6 with 9 we will get the result as 9 – 6= 3.

Question 10.

Answer:
On subtracting 16 – 7 we will get the result as 9.

Explanation:
By subtracting 7 with 16 we will get the result as 16 – 7= 9.

Question 11.

Answer:
On subtracting 12 – 6 we will get the result as 6.

Explanation:
By subtracting 6 with 12 we will get the result as 12 – 6= 6.

Question 12.

Answer:
On subtracting 10 – 8 we will get the result as 2.

Explanation:
By subtracting 8 with 10 we will get the result as 10 – 8= 2.

Tens and Ones
Write how many tens and ones are in each model.

Question 13.
54

__ tens __ ones

Answer:
The number of tens is 5 and the number of ones is 4.

Explanation:
In the above image, we can see 10 blocks with 5 rows. Which are 10 × 5= 50 blocks, so there are 5 tens and we can see 4 blocks which are 4 ones. So the total number of blocks is 50 + 4= 54 blocks.

Question 14.
45

__ tens __ ones

Answer:
The number of tens is 4 and the number of ones is 5.

Explanation:
In the above image, we can see 10 blocks with 4 rows. Which are 10 × 4= 40 blocks, so there are 4 tens and we can see 5 blocks which are 5 ones. So the total number of blocks is 40 + 5= 45 blocks.

2-Digit Subtraction Vocabulary Builder

Visualize It
Fill in the boxes of the graphic organizer.

Understand Vocabulary
Draw a line to complete the sentence.

Answer:
1. A digit can be 0,1,2,3,4,5,6,7,8, or 9.
2. You can regroup to trade 10 ones for 1 ten.
3. 20 ones are the same as 2 tens.

Explanation:

1.  A digit is a single symbol that is used to make numerals, so the digits can be 0, 1, 2, 3, 4, 5, 6, 7, 8, or 9 are the ten digits which we will use every day.
2. Here, regrouping is defined as the process of making and then carrying out the operation like addition with two-digit numbers or larger than the two-digit numbers. And we use regrouping in addition when the sum of two digits in the place value column is greater than nine. And Regrouping in subtraction is a method of interchanging one ten into ten ones. This regrouping of subtraction is used to work out the different subtraction problems. We can regroup to trade 10 ones for 1 ten. And we can regroup to trade 10 ones for 1 ten.
3. 20 ones are the same as 2 tens. As two tens mean 2 × 10= 20 and 20 × 1= 20, so 20 ones are the same as 2 tens.

2-Digit Subtraction Game: Subtraction Search

Materials Search
• 3 sets of number cards 4 – 9 • 18
Play with a partner.
1. Shuffle all the cards. Place them face down in one stack.
2. Take one card. Find a square with a subtraction problem with this number as the difference. Your partner checks your answer.
3. If you are correct, place a on that square. If there is no match, skip your turn.
4. Take turns. The first player to have on all the squares wins.

2-Digit Subtraction Vocabulary Game

Going Places with GOMATH! Words

Bingo

For 3 to 6 players

Materials

• 1 set of word cards
• 1 Bingo board for each player
• game markers

How to Play

1. The caller chooses a word card and reads the word. Then the caller puts the word card in a second pile.
2. Players put a marker on the word each time they find it on their Bingo boards.
3. Repeat steps 1 and 2 until a player marks 5 boxes in a line going down, across, or on a slant and calls “Bingo.”
4. Check the answers. Have the player who said “Bingo” read the words aloud while the caller checks the word cards in the second pile.

The Write Way

Reflect
Choose one idea. Write about it in the space below.

• Explain how drawing quick pictures helps you add 2-digit numbers.
• Tell about all the different ways you can add 2-digit numbers.
• Write about a time that you helped explain something to a classmate. What was your classmate having trouble with? How did you help him or her?

Lesson 5.1 Algebra • Break Apart Ones to Subtract

Essential Question
How does breaking apart a number make subtracting easier?

Listen and Draw

Write two addends for each sum.

Answer:
The two addends for the first image are 3 and 4.
The two addends for the second image are 4 and 5.
The two addends for the third image are 2 and 3.
The two addends for the fourth image are 3 and 3.
The two addends for the fifth image are 2 and 2.
The two addends for the sixth image are 4 and 4.

Explanation:

As addend can be defined as the numbers are added together to get the sum. Here the given sum is 7, so to get the sum 7 we will take the two addends as 3 + 4 so we can get the sum as 7. The given sum is 9, so to get the sum 9 we will take the two addends 4 + 5 so we can get the sum as 9. The given sum is 5, so to get the sum 5 we will take the two addends 2 + 3 so we can get the sum as 5. The given sum is 6, so to get the sum 6 we will take the two addends 3 + 3 so we can get the sum as 6. the given sum is 4, so to get the sum 4 we will take the two addends 2 + 2 so we can get the sum as 4. The given sum is 8, so to get the sum 8 we will take the two addends
4 + 4 so we can get the sum as 8.

Math Talk
MATHEMATICAL PRACTICES

Describe how you chose addends for each sum.

Answer:
The addends are chosen by the given sum. As addend can be defined as the numbers are added to together to get the sum. So we have chosen the two addends by the given sum.

Model and Draw

Break apart ones. Subtract in two steps.

So, 63 − 7 = ___.

Answer:
The subtraction of 63 – 7 is 56.

Explanation:
Here, we have started at 63 and subtracted 3, to subtract 3 on the number line jump makes a jump from 63 to 60 and the size of the jump is 3 and we will get 60. Then we have to subtract 4, so we will start from 60 on the number line jump makes a jump from 60 to 56 and the size of the jump is 4 and we will get 56. So the subtraction of 63 – 7 is 56.

Share and Show MATH BOARD

Break apart ones to subtract. Write the difference.

Question 1.

Answer:
The subtraction of 55 – 8 is 47.

Explanation:
Here, we have started at 55 and subtracted 5, to subtract 5 on the number line jump makes a jump from 55 to 50 and the size of the jump is 5 and we will get 50. Then we have to subtract 3, so we will start from 50 on the number line jump makes a jump from 50 to 47 and the size of the jump is 3 and we will get 47. So the subtraction of 55 – 8 is 47.

Question 2.

Answer:
The subtraction of 42 – 5 is 37.

Explanation:
Here, we have started at 42 and subtracted 2, to subtract 2 on the number line jump makes a jump from 42 to 40 and the size of the jump is 2 and we will get 40. Then we have to subtract 3, so we will start from 40 on the number line jump makes a jump from 40 to 37 and the size of the jump is 3 and we will get 37. So the subtraction of 42 – 5 is 37.

Go Math Grade 2 Chapter 5 Answer Key Question 3.
41 – 9 = __

Answer:
The subtraction of 41 – 9 is 32.

Explanation:
Here, we have started at 41 and subtracted 4, to subtract 4 on the number line jump makes a jump from 41 to 37 and the size of the jump is 4 and we will get 37. Then we have to subtract 5, so we will start from 37 on the number line jump makes a jump from 37 to 32 and the size of the jump is 5 and we will get 32. So the subtraction of 41 – 9 is 32.

Question 4.
53 – 6 = __

Answer:
The subtraction of 53 – 6 is 47.

Explanation:
Here, we have started at 53 and subtracted 3, to subtract 3 on the number line jump makes a jump from 53 to 50 and the size of the jump is 3 and we will get 50. Then we have to subtract 3, so we will start from 50 on the number line jump makes a jump from 50 to 47 and the size of the jump is 3 and we will get 47. So the subtraction of 53 – 6 is 47.

Question 5.
44 – 7 = __

Answer:
The subtraction of 44 – 7 is 37.

Explanation:
Here, we have started at 44 and subtracted 3, to subtract 3 on the number line jump makes a jump from 44 to 41 and the size of the jump is 3 and we will get 41. Then we have to subtract 4, so we will start from 41 on the number line jump makes a jump from 41 to 37 and the size of the jump is 4 and we will get 37. So the subtraction of 44 – 7 is 37.

Question 6.
52 – 8 = __

Answer:
The subtraction of 52 – 8 is 44.

Explanation:
Here, we have started at 52 and subtracted 4, to subtract 4 on the number line jump makes a jump from 52 to 48 and the size of the jump is 4 and we will get 48. Then we have to subtract 4, so we will start from 48 on the number line jump makes a jump from 48 to 44 and the size of the jump is 4 and we will get 44. So the subtraction of 52 – 8 is 44.

On Your Own

Break apart ones to subtract. Write the difference.

Question 7.

Answer:
The subtraction of 75 – 7 is 68.

Explanation:
Here, we have started at 75 and subtracted 3, to subtract 3 on the number line jump makes a jump from 75 to 72 and the size of the jump is 3 and we will get 72. Then we have to subtract 4, so we will start from 72 on the number line jump makes a jump from 72 to 68 and the size of the jump is 4 and we will get 68. So the subtraction of 75 – 7 is 68.

Question 8.

Answer:
The subtraction of 86 – 8 is 78.

Explanation:
Here, we have started at 86 and subtracted 4, to subtract 4 on the number line jump makes a jump from 86 to 82 and the size of the jump is 4 and we will get 82. Then we have to subtract 4, so we will start from 82 on the number line jump makes a jump from 82 to 78 and the size of the jump is 4 and we will get 78. So the subtraction of 86 – 8 is 78.

Question 9.
82 – 5 = __

Answer:
The subtraction of 82 – 5 is 77.

Explanation:
Here, we have started at 82 and subtracted 3, to subtract 3 on the number line jump makes a jump from 82 to 79 and the size of the jump is 3 and we will get 79. Then we have to subtract 2, so we will start from 79 on the number line jump makes a jump from 79 to 77 and the size of the jump is 2 and we will get 77. So the subtraction of 82 – 5 is 77.

Question 10.
83 – 7 = __

Answer:
The subtraction of 83 – 7 is 76.

Explanation:
Here, we have started at 83 and subtracted 3, to subtract 3 on the number line jump makes a jump from 83 to 80 and the size of the jump is 3 and we will get 80. Then we have to subtract 4, so we will start from 80 on the number line jump makes a jump from 80 to 76 and the size of the jump is 4 and we will get 76. So the subtraction of 83 – 7 is 76.

Question 11.
72 – 7 = __

Answer:
The subtraction of 72 – 7 is 65.

Explanation:
Here, we have started at 72 and subtracted 3, to subtract 3 on the number line jump makes a jump from 72 to 69 and the size of the jump is 3 and we will get 69. Then we have to subtract 4, so we will start from 69 on the number line jump makes a jump from 69 to 65 and the size of the jump is 4 and we will get 65. So the subtraction of 72 – 7 is 65.

Question 12.
76 – 9 = __

Answer:
The subtraction of 76 – 9 is 67.

Explanation:
Here, we have started at 76 and subtracted 5, to subtract 5 on the number line jump makes a jump from 76 to 71 and the size of the jump is 5 and we will get 71. Then we have to subtract 4, so we will start from 71 on the number line jump makes a jump from 71 to 67 and the size of the jump is 4 and we will get 67. So the subtraction of 76 – 9 is 67.

Go Math Grade 2 Chapter 5 Review Test Question 13.
85 – 8 = __

Answer:
The subtraction of 85 – 8 is 77.

Explanation:
Here, we have started at 85 and subtracted 4, to subtract 4 on the number line jump makes a jump from 85 to 81 and the size of the jump is 4 and we will get 81. Then we have to subtract 4, so we will start from 81 on the number line jump makes a jump from 81 to 77 and the size of the jump is 4 and we will get 77. So the subtraction of 85 – 8 is 77.

Question 14.
71 – 6 = __

Answer:
The subtraction of 71 – 6 is 65.

Explanation:
Here, we have started at 71 and subtracted 3, to subtract 3 on the number line jump makes a jump from 71 to 68 and the size of the jump is 3 and we will get 68. Then we have to subtract 3, so we will start from 68 on the number line jump makes a jump from 68 to 65 and the size of the jump is 3 and we will get 65. So the subtraction of 71 – 6 is 65.

Question 15.
THINK SMARTER
Cheryl brought 27 bagels for the bake sale. Mike brought 24 bagels. They sold all but 9 of them. How many bagels did they sell?

__ bagels

Answer:
The total number of bagels sold is 42 bagels.

Explanation:
Cheryl brought 27 bagels for the bake sale and Mike brought 24 bagels, so the total number of bagels did Mike and Cheryl bought is 27 + 24= 51 bagels. And they sold all but 9 bagels are left with them, so the number of bagels sold is 51 – 9= 42 bagels. So the total number of bagels sold is 42 bagels.

Question 16.
MATHEMATICAL PRACTICE
Analyze Lexi has 8 fewer crayons than Ken. Ken has 45 crayons. How many crayons does Lexi have?
__ crayons

Answer:
The number of crayons Lexi had is 37 crayons.

Explanation:
As Lexi has 8 fewer crayons than Ken and Ken has 45 crayons, so Lexi has 45 – 8= 37 crayons.

Problem Solving • Applications

Write or draw to explain.

Question 17.
Cheryl built a toy train with 27 train cars. Then she added 18 more train cars. How many train cars are on the toy train now?

__ train cars

Answer:
The number of train cars is on the toy train is 9 train cars.

Explanation:
Cheryl built a toy train with 27 train cars and then she added 18 more train cars, so the number of train cars are on the toy train is 27 – 18= 9 train cars.

Question 18.
MATHEMATICAL PrACTICE
Analyze
Samuel had 46 marbles. He gave some marbles to a friend and has 9 marbles left. How many marbles did Samuel give to his friend?
__ marbles

Answer:
The number of marbles did Samuel gave to his friend is 37 marbles.

Explanation:
Samuel had 46 marbles and he gave some marbles to a friend and has 9 marbles left, so the number of marbles did Samuel gave to his friend is 46 – 9= 37 marbles. So the number of marbles did Samuel gave to his friend is 37 marbles.

Question 19.
THINK SMARTER
Matthew had 73 blocks. He gave 8 blocks to his sister. How many blocks does Matthew have now? Draw or write to show how to solve the problem.

Matthew has __ blocks now.

Answer:
The total number of blocks Matthew had is 65 blocks.

Explanation:
Matthew had 73 blocks and he gave 8 blocks to his sister, so the number of blocks did Matthew had is 73 – 8= 65 blocks. So after giving 8 blocks to his sister Matthew had 65 blocks. By subtracting the number of blocks did Matthew had and the number of blocks did he gave to his sister we had solved the problem.

TAKE HOME ACTIVITY
• Ask your child to describe how to find 34 − 6.

Algebra • Break Apart Ones to Subtract Homework & Practice 5.1

Break apart ones to subtract. Write the difference.

Question 1.
36 – 7 = __

Answer:
The subtraction of 36 – 7 is 29.

Explanation:
Here, we have started at 36 and subtracted 3, to subtract 3 on the number line jump makes a jump from 36 to 33 and the size of the jump is 3 and we will get 33. Then we have to subtract 4, so we will start from 33 on the number line jump makes a jump from 33 to 29 and the size of the jump is 4 and we will get 29. So the subtraction of 36 – 7 is 56.

Question 2.
35 – 8 = __

Answer:
The subtraction of 35 – 8 is 27.

Explanation:
Here, we have started at 35 and subtracted 4, to subtract 4 on the number line jump makes a jump from 35 to 31 and the size of the jump is 4 and we will get 31. Then we have to subtract 4, so we will start from 31 on the number line jump makes a jump from 31 to 27 and the size of the jump is 4 and we will get 27. So the subtraction of 35 – 8 is 27.

Question 3.
37 – 9 = __

Answer:
The subtraction of 37 – 9 is 28.

Explanation:
Here, we have started at 37 and subtracted 4, to subtract 4 on the number line jump makes a jump from 37 to 33 and the size of the jump is 4 and we will get 33. Then we have to subtract 5, so we will start from 33 on the number line jump makes a jump from 33 to 28 and the size of the jump is 5 and we will get 28. So the subtraction of 37 – 9 is 28.

Question 4.
41 – 6 = __

Answer:
The subtraction of 41 – 6 is 35.

Explanation:
Here, we have started at 41 and subtracted 3, to subtract 3 on the number line jump makes a jump from 41 to 38 and the size of the jump is 3 and we will get 38. Then we have to subtract 3, so we will start from 35 on the number line jump makes a jump from 38 to 35 and the size of the jump is 3 and we will get 35. So the subtraction of 41 – 6 is 35.

Question 5.
44 – 5 = __

Answer:
The subtraction of 44 – 5 is 39.

Explanation:
Here, we have started at 44 and subtracted 3, to subtract 3 on the number line jump makes a jump from 44 to 41 and the size of the jump is 3 and we will get 41. Then we have to subtract 2, so we will start from 41 on the number line jump makes a jump from 41 to 39 and the size of the jump is 2 and we will get 39. So the subtraction of 44 – 5 is 39.

Question 6.
33 – 7 = __

Answer:
The subtraction of 33 – 7 is 26.

Explanation:
Here, we have started at 33 and subtracted 3, to subtract 3 on the number line jump makes a jump from 33 to 30 and the size of the jump is 3 and we will get 30. Then we have to subtract 4, so we will start from 30 on the number line jump makes a jump from 30 to 26 and the size of the jump is 4 and we will get 26. So the subtraction of 33 – 7 is 26.

Question 7.
32 – 4 = __

Answer:
The subtraction of 32 – 4 is 28.

Explanation:
Here, we have started at 32 and subtracted 2, to subtract 2 on the number line jump makes a jump from 32 to 30 and the size of the jump is 2 and we will get 30. Then we have to subtract 2, so we will start from 30 on the number line jump makes a jump from 30 to 28 and the size of the jump is 2 and we will get 28. So the subtraction of 32 – 4 is 28.

Question 8.
31 – 6 = __

Answer:
The subtraction of 31 – 6 is 25.

Explanation:
Here, we have started at 31 and subtracted 3, to subtract 3 on the number line jump makes a jump from 31 to 28 and the size of the jump is 3 and we will get 28. Then we have to subtract 3, so we will start from 28 on the number line jump makes a jump from 28 to 25 and the size of the jump is 3 and we will get 25. So the subtraction of 31 – 6 is 25.

Problem Solving

Choose a way to solve. Write or draw to explain.

Question 9.
Beth had 44 marbles. She gave 9 marbles to her brother. How many marbles does Beth have now?
__ marbles.

Answer:
The total number of marbles does Beth had is 35 marbles.

Explanation:
Beth had 44 marbles and she gave 9 marbles to her brother and the remaining marbles do Beth had are 44 – 9= 35 marbles.

Go Math Grade 2 Subtraction Answer Question 10.
WRITE Math
Draw a number line and show how to find the difference for 24 – 6 using the break apart method in this lesson.

Lesson Check

Question 1.
What is the difference?

58 – 9 = __

Answer:
The difference of 58 – 9 is 49.

Explanation:
Here, we have started at 58 and subtracted 4, to subtract 4 on the number line jump makes a jump from 58 to 54 and the size of the jump is 4 and we will get 54. Then we have to subtract 5, so we will start from 54 on the number line jump makes a jump from 54 to 49 and the size of the jump is 5 and we will get 49. So the subtraction of 58 – 9 is 49.

Spiral Review

Question 2.
What is the difference?
14 – 6 = __

Answer:
The difference of 14 – 6 is 8.

Explanation:
Here, we have started at 14 and subtracted 3, to subtract 3 on the number line jump makes a jump from 14 to 11 and the size of the jump is 3 and we will get 11. Then we have to subtract 3, so we will start from 11 on the number line jump makes a jump from 11 to 3 and the size of the jump is 3 and we will get 8. So the subtraction of 14 – 6 is 8.

Question 3.
What is the sum?
3 + 6 + 2 = ___

Answer:
The sum of the three numbers is 11.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the three numbers
3 + 6 + 2 is 11.

Question 4.
What is the sum?
64 + 7 = __

Answer:
The sum of the two numbers is 71.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 64 + 7 is 71.

Question 5.
What is the sum?
56 + 18 = __

Answer:
The sum of the two numbers is 74.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 56 + 18  is 74.

Lesson 5.2 Algebra • Break Apart Numbers to Subtract

Essential Question
How does breaking apart a number make subtracting easier?

Listen and Draw

Draw jumps on the number line to show how to break apart the number to subtract.

Math Talk
MATHEMATICAL PRACTICES
Describe a Method
For one of the problems, describe what you did.

Model and Draw

Break apart the number you are subtracting into tens and ones.
Subtract 10.
Next, subtract 2 to get to 60.
Then subtract 5 more.


So, 72 – 12 = ___

Share and Show MATH BOARD

Break apart the number you are subtracting.
Write the difference.

Question 1.

Answer:
The subtraction of 43 – 18 is 25.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 18 as 10 and 8 and we will subtract 10 and we will get the result as 33. Then we will start from 33 and subtract 3 to get to 30 and then subtract 5 more. So we will get the result as 25, and we will place it on the number line. So the subtraction of 43 – 18 is 25.

Question 2.

Answer:
The subtraction of 45 – 14 is 31.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 14 as 10 and 4 and we will subtract 10 and we will get the result as 35. Then we will start from 35 and subtract 2 to get to 33 and then subtract 2 more. So we will get the result as 31, and we will place it on the number line. So the subtraction of 45 – 14 is 31.

Question 3.
46 – 17 = __

Answer:
The subtraction of 46 – 17 is 29.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 17 as 10 and 7 and we will subtract 10 and we will get the result as 36. Then we will start from 33 and subtract 3 to get to 30 and then subtract 5 more. So we will get the result as 25, and we will place it on the number line. So the subtraction of 46 – 17 is 29.

Question 4.
44 – 16 = __

Answer:
The subtraction of 44 – 16 is 28.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 18 as 10 and 6 and we will subtract 10 and we will get the result as 34. Then we will start from 34 and subtract 4 to get to 30 and then subtract 2 more. So we will get the result as 28, and we will place it on the number line. So the subtraction of 44 – 16 is 28.

On Your Own

Break apart the number you are subtracting. Write the difference.

Question 5.

Answer:
The subtraction of 57 – 15 is 42.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 15 as 10 and 5 and we will subtract 10 and we will get the result as 47. Then we will start from 47 and subtract 3 to get to 44 and then subtract 2 more. So we will get the result as 42, and we will place it on the number line. So the subtraction of 57 – 15 is 42.

Question 6.

Answer:
The subtraction of 63 – 17 is 46.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 17 as 10 and 7 and we will subtract 10 and we will get the result as 53. Then we will start from 53 and subtract 3 to get to 50 and then subtract 4 more. So we will get the result as 46, and we will place it on the number line. So the subtraction of 63 – 17 is 46.

Question 7.
68 – 19 = __

Answer:
The subtraction of 68 – 19 is 49.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 19 as 10 and 9 and we will subtract 10 and we will get the result as 58. Then we will start from 58 and subtract 8 to get to 50 and then subtract 1 more. So we will get the result as 49, and we will place it on the number line. So the subtraction of 68 – 19 is 49.

Go Math Grade 2 Chapter 5 Review Test Answer Key Question 8.
61 – 18 = __

Answer:
The subtraction of 61 – 18 is 43.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 18 as 10 and 8 and we will subtract 10 and we will get the result as 51. Then we will start from 51 and subtract 1 to get to 50 and then subtract 7 more. So we will get the result as 43, and we will place it on the number line. So the subtraction of 61 – 18 is 43.

Question 9.
THINK SMARTER
Jane has 53 toys in a box. She takes some toys out. Now there are 36 toys in the box. How many toys did Jane take out of the box?

Answer:
The number of toys did Jane take out of the box is 17 toys.

Explanation:
As Jane has 53 toys in a box and she takes some toys out, so Now there are 36 toys in the box. So to find how many toys did Jane take out of the box we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So The subtraction of 36 from 53 is 53 – 36= 17. So the number of toys did Jane take out of the box is 17 toys.

Question 10.
GO DEEPER
Look at Tom’s steps to solve a problem. Solve this problem in the same way.
42 – 15 = ?

Answer:
The subtraction of 42 – 15 is 27.

Explanation:
As we can see in the above image that the subtraction is done by the break apart number process, so the given problem is 42 – 15, so here we will break the 15 into 10 and 5, and then we will break 5 apart into 3 and 2. So first we will subtract 10 then the result will be 42 – 10 is 32 and then we will 2 then the result will be 32 – 2= 30. Now we will subtract 3 then the result will be 30 – 3= 27. So the subtraction of 42 – 15 is 27.

Problem Solving • Applications

Question 11.
38 people are in the library. Then 33 more people go into the library. How many people are in the library now?
__ people

Answer:
The total number of people in the library is 71 people.

Explanation:
As there are 38 people in the library and then 33 more people go into the library, so to find the number of people in the library we will perform addition. So we will add 38 + 33 is 71. The total number of people in the library is 71 people.

Question 12.
MATHEMATICAL PRACTICE
Analyze Alex has 24 toys in a chest. He takes some toys out of the chest. Then there are 16 toys in the chest. How many toys did he take out of the chest?

__ toys

Answer:
There are 8 toys did Alex take out of the chest.

Explanation:
As Alex has 24 toys in a chest and he takes some toys out of the chest. Then there are 16 toys in the chest, so to find the number of toys did Alex has to take out of the chest we will perform subtraction. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 16 from 24 is 24 – 16= 8 and there are 8 toys did Alex take out of the chest.

Question 13.
THINK SMARTER
Gail has two piles of newspapers. There are 32 papers in the first pile. There are 19 papers in the second pile. How many more papers are in the first pile than in the second pile?
__ more papers
Write or draw to explain how you solved the problem.

Answer:
The number of papers more in the first pile than the second pile is 13 more papers.

Explanation:
As Gail has two piles of newspapers and there are 32 papers in the first pile and there are 19 papers in the second pile. So to know how many papers are in the first pile than the second pile we will perform subtraction which is 32 – 19= 13 more papers.

TAKE HOME ACTIVITY
• Ask your child to write a subtraction story that uses 2-digit numbers.

Algebra • Break Apart Numbers to Subtract Homework & practice 5.2

Break apart the number you are subtracting. Write the difference.

Question 1.
81 – 14 = __

Answer:
The subtraction of 81 – 14 is 67.

Explanation:
Here, we have started at 81 and subtracted 7, to subtract 7 on the number line jump makes a jump from 81 to 74 and the size of the jump is 7 and we will get 74. Then we have to subtract 7, so we will start from 74 on the number line jump makes a jump from 74 to 67 and the size of the jump is 7 and we will get 67. So the subtraction of 81 – 14 is 67.

Question 2.
84 – 16 = __

Answer:
The subtraction of 84 – 16 is 68.

Explanation:
Here, we have started at 84 and subtracted 8, to subtract 8 on the number line jump makes a jump from 84 to 76 and the size of the jump is 8 and we will get 76. Then we have to subtract 8, so we will start from 76 on the number line jump makes a jump from 76 to 68 and the size of the jump is 8 and we will get 68. So the subtraction of 84 – 16 is 68.

Question 3.
77 – 14 = __

Answer:
The subtraction of 77 – 14 is 63.

Explanation:
Here, we have started at 77 and subtracted 7, to subtract 7 on the number line jump makes a jump from 77 to 70 and the size of the jump is 7 and we will get 70. Then we have to subtract 7, so we will start from 70 on the number line jump makes a jump from 70 to 63 and the size of the jump is 7 and we will get 63. So the subtraction of 77 – 14 is 63.

Question 4.
83 – 19 = __

Answer:
The subtraction of 83 – 19 is 64.

Explanation:
Here, we have started at 83 and subtracted 10, to subtract 10 on the number line jump makes a jump from 83 to 73 and the size of the jump is 10 and we will get 73. Then we have to subtract 9, so we will start from 73 on the number line jump makes a jump from 73 to 64 and the size of the jump is 9 and we will get 64. So the subtraction of 83 – 19 is 64.

Question 5.
81 – 17 = __

Answer:
The subtraction of 81 – 17 is 64.

Explanation:
Here, we have started at 81 and subtracted 10, to subtract 10 on the number line jump makes a jump from 81 to 71 and the size of the jump is 10 and we will get 71. Then we have to subtract 7, so we will start from 71 on the number line jump makes a jump from 71 to 64 and the size of the jump is 7 and we will get 64. So the subtraction of 81 – 17 is 64.

Question 6.
88 – 13 = __

Answer:
The subtraction of 88 – 13 is 75.

Explanation:
Here, we have started at 88 and subtracted 3, to subtract 3 on the number line jump makes a jump from 83 to 80 and the size of the jump is 3 and we will get 80. Then we have to subtract 10, so we will start from 80 on the number line jump makes a jump from 80 to 75 and the size of the jump is 10 and we will get 75. So the subtraction of 88 – 13 is 75.

Question 7.
84 – 19 = __

Answer:
The subtraction of 84 – 19 is 65.

Explanation:
Here, we have started at 84 and subtracted 10, to subtract 10 on the number line jump makes a jump from 84 to 74 and the size of the jump is 10 and we will get 74. Then we have to subtract 9, so we will start from 74 on the number line jump makes a jump from 74 to 65 and the size of the jump is 9 and we will get 65. So the subtraction of 84 – 19 is 65.

Question 8.
86 – 13 = __

Answer:
The subtraction of 86 – 13 is 73.

Explanation:
Here, we have started at 86 and subtracted 7, to subtract 7 on the number line jump makes a jump from 86 to 79 and the size of the jump is 7 and we will get 79. Then we have to subtract 6, so we will start from 79 on the number line jump makes a jump from 79 to 73 and the size of the jump is 6 and we will get 73. So the subtraction of 86 – 13 is 73.

Question 7.
84 – 19 = __

Answer:
The subtraction of 84 – 19 is 65.

Explanation:
Here, we have started at 84 and subtracted 10, to subtract 10 on the number line jump makes a jump from 84 to 74 and the size of the jump is 10 and we will get 74. Then we have to subtract 9, so we will start from 74 on the number line jump makes a jump from 74 to 65 and the size of the jump is 9 and we will get 65. So the subtraction of 84 – 19 is 65.

Question 8.
86 – 18 = __

Answer:
The subtraction of 86 – 18 is 68.

Explanation:
Here, we have started at 84 and subtracted 9, to subtract 9 on the number line jump makes a jump from 86 to 77 and the size of the jump is 9 and we will get 77. Then we have to subtract 9, so we will start from 77 on the number line jump makes a jump from 77 to 68 and the size of the jump is 9 and we will get 68. So the subtraction of 86 – 18 is 68.

Problem Solving

Solve. Write or draw to explain.

Question 9.
Mr. Pearce bought 43 plants. He gave 14 plants to his sister. How many plants does Mr. Pearce have now?
__ plants

Answer:
The number of plants does Mr. Pearce had is 29 plants.

Explanation:
Mr. Pearce bought 43 plants and he gave 14 plants to his sister. So the number of plants does Mr. Pearce has now is 43 – 14. Here, we have started at 43 and subtracted 7, to subtract 7 on the number line jump makes a jump from 43 to 36 and the size of the jump is 7 and we will get 36. Then we have to subtract 7, so we will start from 36 on the number line jump makes a jump from 7 to 29 and the size of the jump is 7 and we will get 29. So the subtraction of 43 – 14 is 29. So the number of plants does Mr. Pearce had is 29 plants.

Question 10.
WRITE Math
Draw a number line and show how to find the difference for 36 – 17 using the break apart method in this lesson.

Lesson Check

Question 1.
What is the difference?

63 – 19 = __

Answer:
The subtraction of 63 – 19 is 44.

Explanation:
Here, we have started at 63 and subtracted 10, to subtract 10 on the number line jump makes a jump from 63 to 53 and the size of the jump is 10 and we will get 53. Then we have to subtract 9, so we will start from 53 on the number line jump makes a jump from 53 to 44 and the size of the jump is 9 and we will get 44. So the subtraction of 63 – 19 is 44.

Spiral Review

Question 2.
What is the sum?

Answer:
The sum of the two numbers is 37.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 14 + 23 is 37.

Question 3.
What is the sum?
8 + 7 = _

Answer:
The sum of the two numbers is 15.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 8 + 7 is 15.

Question 4.
Write a related subtraction fact for 6 + 8 = 14.
____

Answer: 14 – 8 = 6

Question 5.
John has 7 kites. Annie has 4 kites. How many kites do they have altogether?
__ kites

Answer:
The number of kites does they together have is 7 + 4= 11 kites.

Explanation:
John has 7 kites and Annie has 4 kites, so the number of kites do they together have is 7 + 4= 11 kites.

Lesson 5.3 Model Regrouping for Subtraction

Essential Question
When do you regroup in subtraction?

Answer:
We will regroup in subtraction when the minuend digit is less than the subtrahend digit. Then we will take carry forward to the lesser digit and then we will perform subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend.

Listen and Draw

Use to model the problem. Draw quick pictures to show your model.

Math Talk
MATHEMATICAL PRACTICES

Describe why you traded a tens block for 10 ones blocks.

Model and Draw

How do you subtract 26 from 53?

Answer:
The subtraction of 53 and 26 is 27.

Explanation:
To perform subtraction for 26 from 53 we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So The subtraction of 26 from 53 is 27.

Step 1
Show 53. Are there enough ones to subtract 26?

Step 2
If there are not enough ones, regroup 1 ten as 10 ones.

Step 3
Subtract 6 ones from 13 ones.

Step 4
Subtract the tens. Write the tens and ones. Write the difference.

Share and Show MATH BOARD

Draw to show the regrouping. Write the difference two ways. Write the tens and ones. Write the number.

Question 1.
Subtract 13 from 41.

__ tens __ ones __

Answer:
The subtraction of 13 from 41 is 28. And there are two tens and eight ones.

Explanation:
In the above image, we can see that there are four tens blocks and one one’s block. So here we need to subtract 13 from 41, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 41 is 41 – 13= 28 and there are two tens and eight ones.

Question 2.
Subtract 9 from 48.

__ tens __ ones __

Answer:
The subtraction of 9 from 48 is 39. And there are three tens and nine ones.

Explanation:
In the above image, we can see that there is four tens blocks and eight one’s block. So here we need to subtract 9 from 48, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 9 from 48 is 48 – 9= 39 and there are three tens and nine ones.

Go Math Common Core Grade 2 Question 3.
Subtract 28 from 52.

__ tens __ ones __

Answer:
The subtraction of 28 from 52 is 24. And there are two tens and four ones.

Explanation:
In the above image, we can see that there is five tens blocks and two one’s block. So here we need to subtract 28 from 48, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 28 from 52 is 52 – 28= 24 and there are two tens and four ones.

On Your Own

Draw to show the regrouping. Write the difference two ways. Write the tens and ones. Write the number.

Question 4.
Subtract 8 from 23

__ tens __ ones __

Answer:
The subtraction of 8 from 23 is 15. And there are one ten and five ones.

Explanation:
In the above image, we can see that there is one tens block and five ones block. So here we need to subtract 8 from 23, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 8 from 23 is 23 – 8= 15 and there are one ten and five ones.

Question 5.
Subtract 36 from 45.

__ tens __ ones __

Answer:
The subtraction of 36 from 45 is 9. And there are no tens and nine ones.

Explanation:
In the above image, we can see that there is five tens blocks and two one’s block. So here we need to subtract 36 from 45, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 36 from 45 is 45 – 36= 9 and there are no tens and nine ones.

Question 6.
Subtract 6 from 43.

__ tens __ ones __

Answer:
The subtraction of 6 from 43 is 37. And there are three tens and seven ones.

Explanation:
In the above image, we can see that there is four tens blocks and three one’s block. So here we need to subtract 6 from 43, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 6 from 43 is 43 – 6= 37 and there are three tens and seven ones.

Question 7.
Subtract 39 from 67

__ tens __ ones __

Answer:
The subtraction of 39 from 67 is 28. And there are two tens and eight ones.

Explanation:
In the above image, we can see that there is six tens blocks and seven ones block. So here we need to subtract 28 from 48, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 39 from 67 is 67 – 39= 28 and there are two tens and eight ones.

Question 8.
Subtract 21 from 50.

__ tens __ ones __

Answer:
The subtraction of 21 from 50 is 29. And there are two tens and nine ones.

Explanation:
In the above image, we can see that there is five tens blocks and zero ones in ones block. So here we need to subtract 21 from 50, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 21 from 50 is 50 – 21= 29 and there are two tens and nine ones.

Question 9.
Subtract 29 from 56

__ tens __ ones __

Answer:
The subtraction of 29 from 56 is 27. And there are two tens and seven ones.

Explanation:
In the above image, we can see that there are five tens blocks and two one’s blocksxx. So here we need to subtract 28 from 48, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 29 from 56 is 56 – 29= 27 and there are two tens and seven ones.

Question 10.
GO DEEPER
Draw to find what number was subtracted from 53.

Subtract __ from 53.
3 tens 4 ones
34

Problem Solving • Applications

Write or draw to explain.

Question 11.
THINK SMARTER
Billy has 18 fewer marbles than Sara. Sara has 34 marbles. How many marbles does Billy have?

__ marbles

Answer:
The total number of marbles does Billy had is 16 marbles.

Explanation:
As Billy has 18 fewer marbles than Sara and Sara has 34 marbles, so here fewer marbles means we will do subtraction. So the number of marbles do Billy had is 34 – 18= 16 marbles. Here we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the total number of marbles does Billy had is 16 marbles.

Question 12.
THINK SMARTER
There are 67 toy animals in the store. Then the clerk sells 19 toy animals. How many toy animals are in the store now?
Draw to show how to find the answer.

__ toy animals

Answer:
The number of toys in the store is 48 toys.

Explanation:
As there are 67 toy animals in the store and then the clerk sells 19 toy animals, so to find how many toys in the store is we will perform subtraction. Here we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of toys in the store is 67 – 19= 48 toys.

Describe how you solved the problem.
__________________________
__________________________
__________________________

Answer:
The problem is solved by using regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend.

TAKE HOME ACTIVITY
• Ask your child to write a subtraction story and then explain how to solve it.

Model Regrouping for Subtraction Homework & Practice 5.3

Draw to show the regrouping. Write the difference two ways. Write the tens and ones. Write the number.

Question 1.
Subtract 9 from 35

__ tens __ ones __

Answer:
The subtraction of 9 from 35 is 26. And there are two tens and six ones.

Explanation:
In the above image, we can see that there are three tens blocks and five one’s block. So here we need to subtract 9 from 35, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 9 from 35 is 35 – 9= 26 and there are two tens and six ones.

Question 2.
Subtract 14 from 52.

__ tens __ ones __

Answer:
The subtraction of 9 from 35 is 26. And there are two tens and six ones.

Explanation:
In the above image, we can see that there are three tens blocks and five one’s block. So here we need to subtract 9 from 35, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 9 from 35 is 35 – 9= 26 and there are two tens and six ones.

Problem Solving

Choose a way to solve. Write or draw to explain.

Question 3.
Mr. Ortega made 51 cookies. He gave 14 cookies away. How many cookies does he have now?
__ cookies

Answer: 37

Explanation:
As Mr. Ortega made 51 cookies and he gave 14 cookies away. So to find the number of cookies does Ortega had we will do subtraction.

Question 4.
WRITE Math
Draw a quick picture for 37. Draw to show how you would subtract 19 from 37. Write to explain what you did.

__________________________
__________________________
__________________________

Answer:
The subtraction of 37 – 19 is 18. The subtraction is done by the regrouping of subtraction.

Explanation:

The subtraction of 37 – 19 is 18. The subtraction is done by the regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 37 – 19 is 18.

Lesson Check

Question 1.
Subtract 9 from 36. What is the difference?

Answer:
The subtraction of 9 from 36 is 27. And there are two tens and seven ones.

Explanation:
In the above image, we can see that there are three tens blocks and six one’s blocks. So here we need to subtract 9 from 36, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 9 from 36 is 36 – 9= 27 and there are two tens and seven ones.

Question 2.
Subtract 28 from 45. What is the difference?

Answer:
The subtraction of 28 from 45 is 17. And there are one ten and seven ones.

Explanation:
In the above image, we can see that there are four tens blocks and five one’s blocks. So here we need to subtract 28 from 45, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 28 from 45 is 45 – 28= 17 and there are one ten and seven ones.

Spiral Review

Question 3.
What is the difference?
51 – 8 = __

Answer:
The subtraction of 8 from 51 is 43. And there are four tens and three ones.

Explanation:
In the above image, we can see that there are three tens blocks and six one’s blocks. So here we need to subtract 8 from 51, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 8 from 51 is 51 – 8= 43 and there are four tens and three ones.

Question 4.
What is the sum?
38 + 35 = __

Answer:
The sum of the two numbers is 73.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 38 + 35 is 73.

Question 5.
What is the sum?

Answer:
The sum of the three numbers is 90.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the three numbers 63 + 18 + 9 is 90.

Lesson 5.4 Model and Record 2-Digit Subtraction

Essential Question
How do you record 2-digit subtraction?

Listen and Draw
Use to model the problem. Draw quick pictures to show your model.

Answer:
We will perform subtraction by breaking the two-digit number into tens place digit and ones place digit. Then the other number will be placed below the number. If the minuend number is less than the subtrahend number then we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So by this, we will perform the subtraction.

Math Talk
MATHEMATICAL PRACTICE
Explain a Method
Did you trade blocks in your model? Explain why or why not.

Model and Draw

Trace over the quick pictures in the steps. Subtract.

Share and Show MATH BOARD

Draw a quick picture to solve. Write the difference.

Question 1.

Answer:
The subtraction of 15 from 47 is 32. And there are three ten and two ones.

Explanation:
In the above image, we can see that there are four tens and seven ones. So here we need to subtract 15 from 47, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 15 from 47 is 47 – 15= 32 and there are three ten and two ones.

Go Math Lesson 5.4 2nd Grade  Question 2.

Answer:
The subtraction of 18 from 32 is 14. And there are one ten and four ones.

Explanation:
In the above image, we can see that there are three tens and five ones. So here we need to subtract 18 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 18 from 32 is 32 – 18= 14 and there are one ten and four ones.

On Your Own

Draw a quick picture to solve. Write the difference.

Question 3.

Answer:
The subtraction of 29 from 35 is 6. And there are zero tens and six ones.

Explanation:
In the above image, we can see that there are three tens and five ones. So here we need to subtract 29 from 35, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 29 from 35 is 35 – 29= 6 and there are zero tens and six ones.

Question 4.

Answer:
The subtraction of 5 from 28 is 23. And there are two tens and three ones.

Explanation:
In the above image, we can see that there are two tens and eight ones. So here we need to subtract 5 from 28, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 5 from 28 is 28 – 5= 23 and there are two ten and three ones.

Question 5.

Answer:
The subtraction of 26 from 53 is 27. And there are two tens and seven ones.

Explanation:
In the above image, we can see that there are five tens and three ones. So here we need to subtract 26 from 53, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 26 from 53 is 53 – 26= 27 and there are two tens and seven ones.

Question 6.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 7.
GO DEEPER
There are 16 robins in the trees. 24 more fly in. Then 28 robins fly away. How many robins are still in the trees?

__ robbins

Answer:
The total number of robins are still on the trees is 12 robins.

Explanation:
As there are 16 robins on the tree and 24 more fly-ins. So the number of robins is 24 + 16= 40. Now 28 robins fly away, so the total number of robins are still on the trees is 40 – 28= 12 robins.

Problem Solving • Applications

Question 8.
THINK SMARTER
Claire’s puzzle has 85 pieces. She has used 46 pieces so far. How many puzzle pieces have not been used yet?

__ puzzle pieces

Answer:
the number of puzzle pieces that have not been used is 39 puzzle pieces.

Explanation:
As Claire’s puzzle has 85 pieces and she has used 46 pieces so far. So the number of puzzle pieces that have not been used is
85 – 46= 39 puzzle pieces.

Question 9.
MATHEMATICAL PRACTICE
Analyze There were some people at the park. 24 people went home. Then there were 19 people at the park. How many people were at the park before?
__ people

Answer:
The total number of people at the park before is 43 people.

Explanation:
As there were some people at the park and 24 people went home. Then there were 19 people at the park, so the total number of people at the park before is 24 + 19= 43 people.

Question 10.
THINK SMARTER
Mr. Sims has a box of 44 erasers. He gives 28 erasers to his students. How many erasers does Mr. Sims have now? Show how you solved the problem.

__ erasers

Answer: 16

Explanation:
As Mr. Sims has a box of 44 erasers and he gives 28 erasers to his students. So the number of erasers does Mr. Sims has now is
44 – 28= 16 erasers. Here we have solved by using regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 28 from 44 is 44 – 28= 16 erasers.

TAKE HOME ACTIVITY
• Write 73 − 28 on a sheet of paper. Ask your child if he or she would regroup to find the difference.

Model and Record 2-Digit Subtraction Homework & Practice 5.4

Draw a quick picture to solve. Write the difference.

Question 1.

Answer:
The subtraction of 17 from 43 is 26. And there are two tens and six ones.

Explanation:
In the above image, we can see that there are four tens and three one’s. So here we need to subtract 17 from 43, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 17 from 43 is 43 – 17= 26 and there are two tens and six ones.

Question 2.

Answer:
The subtraction of 29 from 38 is 9. And there are zero tens and nine ones.

Explanation:
In the above image, we can see that there are three tens and eight one’s. So here we need to subtract 29 from 38, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 29 from 38 is 38 – 29= 9 and there are zero tens and nine ones.

Problem Solving

Solve. Write or draw to explain.

Go Math 2nd Grade Pdf Chapter 5 Answer Key Question 3.
Kendall has 63 stickers. Her sister has 57 stickers. How many more stickers does Kendall have than her sister?
__ more stickers.

Answer:
The number of stickers Kendall has than her sister is 6 more stickers.

Explanation:
As Kendall has 63 stickers and her sister has 57 stickers, the number of stickers Kendall has than her sister is 63 – 57= 6 more stickers. Here we will perform regrouping of subtraction. Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 57 from 63 is 63 – 57= 9 stickers.

Question 4.
WRITE Math
Draw a quick picture to show the number 24. Then draw a quick picture to show 24 after you have regrouped 1 ten as 1-ones. Explain how both pictures show the same number, 24.
__________________________
__________________________
__________________________

Lesson Check

Question 1.
What is the difference?

Answer:
The subtraction of 18 from 47 is 29. And there are two tens and nine ones.

Explanation:
In the above image, we can see that there are four tens and seven ones. So here we need to subtract 18 from 47, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 18 from 47 is 47 – 18= 29 and there are two tens and nine ones.

Question 2.
What is the difference?

Answer:
The subtraction of 29 from 33 is 4. And there are zero tens and four ones.

Explanation:
In the above image, we can see that there are three tens and five one blocks. So here we need to subtract 29 from 33, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 29 from 33 is 33 – 29= 4 and there are zero tens and four ones.

Spiral Review

Question 3.
What is the difference?
10 – 6 = __

Answer:
The difference is 4.

Explanation:
The difference between 10 and 6 is 4.

Question 4.
What is the sum?
16 + 49 = __

Answer:
The sum of the two numbers is 65.

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here the sum of the two numbers 16 + 49  is 65.

Question 5.
What is the sum?
28 + 8 = __

Answer:
The sum of the two numbers is 36.

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here the sum of the two numbers 28 + 8  is 36.

Question 6.
What is the difference?
52 – 6 = __

Answer:
The difference is 46.

Explanation:
The difference between 52 and 6 is 46.

Lesson 5.5 2-Digit Subtraction

Essential Question
How do you record the steps when subtracting 2-digit numbers?

Listen and Draw

Draw a quick picture to model each problem.

Math Talk
MATHEMATICAL PRACTICES
Use Reasoning Explain how you know when to regroup.

Model and Draw

Share and Show MATH BOARD

Regroup if you need to. Write the difference.

Question 1.

Answer:
The subtraction of 14 from 31 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and one one’s block. So here we need to subtract 14 from 31, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 14 from 31 is 31 – 14= 19 and there are one ten and nine ones.

Question 2.

Answer:
The subtraction of 21 from 56 is 35. And there are three tens and five ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 21 from 56, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 21 from 56 is 56 – 21= 35 and there are three tens and five ones.

Go Math Book Grade 2 Model Regrouping for Subtraction Question 3.

Answer:
The subtraction of 35 from 72 is 37. And there are three tens and seven ones.

Explanation:
In the above image, we can see that there are seven tens and two ones. So here we need to subtract 35 from 72, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 35 from 72 is 72 – 35= 37 and there are three tens and seven ones.

On Your Own
Regroup if you need to. Write the difference.

Question 4.

Answer:
The subtraction of 14 from 23 is 9. And there are zero tens and nine ones.

Explanation:
In the above image, we can see that there are two tens and three one’s. So here we need to subtract 14 from 23, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 14 from 23 is 23 – 14= 9 and there are zero tens and nine ones.

Question 5.

Answer:
The subtraction of 57 from 87 is 30. And there are three ten and zero ones.

Explanation:
In the above image, we can see that there are eight tens and seven one’s. So here we need to subtract 57 from 87, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 57 from 87 is 87 – 57= 30 and there are three ten and zero ones.

Question 6.

Answer:
The subtraction of 18 from 34 is 16. And there are one ten and six ones.

Explanation:
In the above image, we can see that there are three tens and four one’s. So here we need to subtract 18 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 7.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 8.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 9.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 10.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 11.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 12.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Go Math Grade 2 Chapter 5 Break Apart Ones to Subtract Question 13.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 14.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 15.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 16.
THINK SMARTER
Spencer wrote 5 fewer stories than Katie. Spencer wrote 18 stories. How many stories did Katie write?

__ stories

Answer:
The number of stories written by Katie is 13 stories.

Explanation:
As Spencer wrote 5 fewer stories than Katie and Spencer wrote 18 stories. As Spencer wrote 5 fewer stories than Katie so we will perform subtraction. So the number of stories written by Katie is 18 – 5= 13 stories.

Problem Solving • Applications

Question 17.
MATHEMATICAL PRACTICE
Explain a Method Circle the problems below that you could use mental math to solve.
54 – 10 = __
63 – 27 = __
93 – 20 = __
39 – 2 = __
41 – 18 = __
82 – 26 = __
Explain your choices
__________________________
__________________________
__________________________

Question 18.
THINK SMARTER
There are 34 chickens in the barn. If 16 chickens go outside into the yard, how many chickens will still be in the barn?
Circle the number from the box to make the sentence true.

Answer:
The number of chickens will be in the barn will be 18 chickens.

Explanation:
As there are 34 chickens in the barn and if 16 chickens go outside into the yard then the number of chickens will be in the barn will be 34 – 16= 18 chickens. Here we have performed regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of chickens will be in the barn will be 34 – 16= 18 chickens.

TAKE HOME ACTIVITY
• Ask your child to write a 2-digit subtraction problem with no regrouping needed. Have your child explain why he or she chose those numbers.

Answer:
The subtraction of 56 – 23 is 33.

Explanation:
Given that we need to perform the subtraction without regrouping, so we need to take the minuend number greater than the subtrahend. Then we need not perform the regrouping, so we will take the numbers to be subtracted be 56 – 23= 33.

2-Digit Subtraction Homework & Practice 5.5

Regroup if you need to. Write the difference.

Question 1.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 3.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 4.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 5.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 6.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 7.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 8.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Problem Solving

Solve. Write or draw to explain.

Question 9.
Mrs. Paul bought 32 erasers. She gave 19 erasers to students. How many erasers does she still have?

Answer:
The number of erasers Mrs. Paul had is 13 erasers.

Explanation:
As Mrs. Paul bought 32 erasers and she gave 19 erasers to students. So to find how many erasers does she still has is we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of erasers Mrs. Paul had is
32 – 9= 13 erasers.

Question 10.
WRITE Math
Write a few sentences about different ways to show subtraction for a problem like 32 – 15.
__________________________
__________________________

Lesson Check

Question 1.
What is the difference?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.
What is the difference?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Spiral Review

Question 3.
What is the difference?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 4.
Write an addition fact that will give the same sum as 8 + 7.
10 + __

Answer:
The number to get the sum as 15 is we should add 5 to the number 10.

Explanation:
The sum of 8 + 7 is 15. So to get the 15 as a result of the given number, we will add 5 to the number 10. So we will get the result as 15.

Go Math Grade 2 Chapter 5 Review/Test Answer Key Pdf Question 5.
27 boys and 23 girls go on a field trip to the museum. How many children go to the museum?
__ children

Answer:
The number of children who went to the museum is 50 children.

Explanation:
As there are 27 boys 23 girls on the field trip to the museum, so the number of children who went to the museum is 27 + 23= 50 children

Question 6.
There were 17 berries in the basket. Then 9 berries are eaten. How many berries are there now?
__ berries

Answer:
The number of berries will be 8 berries.

Explanation:
As there are 17 berries in the basket and 9 berries are eaten, then the number of berries will be 17 – 9= 8 berries. Here we have performed regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of berries will be 17 – 9= 8 berries

Lesson 5.6 Practice 2-Digit Subtraction

Essential Question
How do you record the steps when subtracting 2-digit numbers?

Answer:
We will perform subtraction by breaking the two-digit number into tens place digit and ones place digit. Then the other number will be placed below the number. If the minuend number is less than the subtrahend number then we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So by this, we will perform the subtraction.

Listen and Draw

Choose one way to solve the problem.
Draw or write to show what you did.

Math Talk
MATHEMATICAL PRACTICES
Describe a different way that you could have solved the problem.

Model and Draw

Carmen had 50 game cards. Then she gave 16 game cards to Theo. How many game cards does Carmen have now?
Step 1
Look at the ones. There are not enough ones to subtract 6 from 0. So, regroup

Step 2
Subtract the ones.
10 – 6 = 4

Step 3
Subtract the tens.
4 – 1 = 3

Share and Show MATH BOARD

Write the difference.

Question 1.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 3.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Go Math Grade 2 Workbook Pdf Algebra Lesson 5.6 Question 4.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 5.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 6.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

On Your Own

Write the difference.

Question 7.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 8.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 9.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 10.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 11.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 12.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 13.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 14.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 15.
GO DEEPER
Write the missing numbers in the subtraction problems. The regrouping for each problem is shown.

Answer:
The missing values is 75 and 28 and 83 and 58.

Explanation:

Here, to find the missing values we will find with the help of the carry forward numbers. As the carry forward are 6 and 15 so the minuend is 75 as the result is 47, so the other number will be 75 – 47= 28. As the carry forward are 7 and 13 so the minuend is 83 as the result is 25, so the other number will be 83 – 58= 25.

Question 16.
THINK SMARTER
Adam takes 38 rocks out of a box. There are 23 rocks left in the box. How many rocks were in the box to start?

__ rocks

Answer:
The number of rocks were in the box to start is 61 rocks.

Explanation:
Adam takes 38 rocks out of a box and there are 23 rocks left in the box. So to find the number of rocks were in the box we will add the rocks that adam had took and the number of rocks left in the box. So the number of rocks were in the box to start is
38 + 28= 61 rocks.

TAKE HOME ACTIVITY
• Ask your child to show you one way to find 80 − 34.

Answer:
The subtraction of 34 from 80 is 46. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are eight tens and zero ones. So here we need to subtract 34 from 80, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 34 from 80 is 80 – 34= 46 and there are four tens and six ones.

Practice 2-Digit Subtraction Homework & Practice 5.6

Write the difference.

Question 1.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 3.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 4.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 5.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 6.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Problem Solving

Solve. Write or draw to explain.

Question 7.
Julie has 42 sheets of paper. She gives 17 sheets to Kari. How many sheets of paper does Julie have now?
__ sheets of paper

Answer: 24 sheets of paper

Explanation:
Given,
Julie has 42 sheets of paper. She gives 17 sheets to Kari.
42 – 17 = 24
Julie has 24 sheets of paper now.

Question 8.
WRITE Math
Draw and write to explain how these two problems are different: 35 – 15 = ________ and 43 – 26 = _______
__________________________

Lesson Check

Question 1.
What is the difference?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.
What is the difference?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Spiral Review

Question 3.
What is the sum?
9 + 9 = __

Answer: 18

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here the sum of the two numbers 9 + 9 is 18.

Question 4.
What is the difference?
14 – 7 = __

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 5.
What is the sum?
36 + 25 = __

Answer:
The sum of the two numbers is 61.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 36 + 25 is 61.

Question 6.
What is the sum?
7 + 2 + 3 = __

Answer:
The sum of the three numbers is 12.

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here the sum of the three numbers 7 + 2 + 3 is 12.

2-Digit Subtraction Mid-Chapter Checkpoint

Concepts and Skills

Break apart the number you are subtracting. Use the number line to help. Write the difference.

Question 1.
34 – 8 = __

Answer:
The subtraction of 8 from 34 is 26. And there are two tens and six ones.

Explanation:
In the above image, we can see that there are three tens and four ones. So here we need to subtract 8 from 34, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 8 from 34 is 34 – 8= 26 and there are two tens and six ones.

Question 2.
45 – 17 = __

Answer:
The subtraction of 17 from 45 is 28. And there are two tens and eight ones.

Explanation:
In the above image, we can see that there are four tens and five ones. So here we need to subtract 17 from 45, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 17 from 45 is 45 – 17= 28 and there are two tens and eight ones.

Draw a quick picture to solve. Write the difference.

Question 3.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 4.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Write the difference.

Question 5.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 6.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 7.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 8.
THINK SMARTER
Marissa had 51 toy dinosaurs. She gave 14 toy dinosaurs to her brother. How many toy dinosaurs does she have now?

__ toy dinosaurs

Answer:
The number of dinosaurs does Marissa has is 37 dinosaurs.

Explanation:
Marissa had 51 toy dinosaurs and she gave 14 toy dinosaurs to her brother. So to how many toy dinosaurs does she have we will perform regrouping of subtraction. Here we have solved by using regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of dinosaurs does Marissa has is 51 – 14= 37 dinosaurs.

Lesson 5.7 Rewrite 2-Digit Subtraction

Essential Question
What are two different ways to write subtraction problems?

Math Talk
MATHEMATICAL PRACTICES
Explain why it is important to line up the digits of the numbers in columns.

Model and Draw

What is 81 – 36?
Rewrite the subtraction problem.
Then find the difference.

Step 1
For 81, write the tens digit in the tens column. Write the ones digit in the ones column.

Step 2
Look at the ones. Regroup if you need to.

Share and Show MATH BOARD

Rewrite the subtraction problem. Then find the difference.

Question 1.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 3.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 4.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Break Apart To Subtract Go Math 2nd Grade Chapter 5 Question 5.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 6.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 7.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 8.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

On Your Own

Rewrite the subtraction problem. Then find the difference.

Question 9.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 10.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 11.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 12.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 13.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 14.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 15.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 16.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 17.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 18.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 19.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 20.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 21.
THINK SMARTER
For which of the problems above could you find the difference without rewriting it? Explain.

___________________________
___________________________
___________________________

Problem Solving • Applications

Read about the class trip. Then answer the questions.

Question 22.
How many more paintings were done by adults than by children?
__ more paintings

Answer:
The number of paints which were more by adults than children is 53 – 26= 27 paintings.

Explanation:
As Pablo’s class went to the art museum, and they saw 26 paintings done by the children. After that, they saw 53 paintings done by the adults. So the number of paints which were more by adults than the children is 53 – 26= 27 paintings.

Question 23.
GO DEEPER
How many more paintings than sculptures did they see?
__ more paintings

Answer:
The number of paintings that were more than sculptures is 61 more paintings.

Explanation:
As Pablo’s class went to the art museum, and they saw 26 paintings done by the children. After that, they saw 53 paintings done by the adults. So the total number of paintings is 53 + 26 = 79 paintings. And they saw 18 sculptures, so the number of paintings which were more than the sculptures is 79 – 18= 61 more paintings.

Question 24.
THINK SMARTER
Tom drew 23 pictures last year. Beth drew 14 pictures. How many more pictures did Tom draw than Beth?
Fill in the bubble next to all the ways to show the problem.

TAKE HOME ACTIVITY
• Ask your child to write and solve a subtraction problem about a family trip.

Answer:
The number of more pictures Tom draws than Beth is 23 – 14= 9 pictures.

Explanation:
As Tom drew 23 pictures last year and Beth drew 14 pictures, the number of more pictures Tom drew than Beth is 23 – 14= 9 pictures.

Rewrite 2-Digit Subtraction Homework & Practice 5.7

Rewrite the subtraction problem. Then find the difference.

Question 1.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 3.

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Problem Solving

Solve. Write or draw to explain.

Question 4.
Jimmy went to the toy store. He saw 23 wooden trains and 41 plastic trains. How many more plastic trains than wooden trains did he see?
___ more plastic trains

Answer:
There are 18 more plastic trains than wooden trains.

Explanation:
Jimmy went to the toy store and he saw 23 wooden trains and 41 plastic trains, so to find how many more plastic trains than wooden trains did he see is we will perform subtraction. So there will be 41 – 23= 18 more plastic trains than wooden trains.

Question 5.
WRITE Math
Is it easier to subtract when the numbers are written above and below each other? Explain your answer
__________________________
__________________________
__________________________
__________________________

Answer:
Yes, it is easier to subtract the numbers that are written above and below each other. As we can easily borrow from the place in front of the number and we can rewrite without a problem. It also helps to keep the math problems more organized so by writing the numbers above and below we will be confused.

Lesson Check

Question 1.
What is the difference for 43 − 17?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Question 2.
What is the difference for 50 − 16?

Answer:
The subtraction of 13 from 32 is 19. And there are one ten and nine ones.

Explanation:
In the above image, we can see that there are three tens and five one’s blocks. So here we need to subtract 13 from 32, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 32 is 32 – 13= 19 and there are one ten and nine ones.

Spiral Review

Question 3.
What is the sum?

Answer:
The sum of the given numbers is 74.

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here is the sum of the given numbers
29 + 4 + 25 + 16  is 74.

Question 4.
What is the sum of 41 + 19?
_______

Answer:
The sum of the given numbers is 60.

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here is the sum of the given numbers
41 + 19 is 60.

Question 5.
Write an addition fact that will give the same sum as 5 + 9?
10 + ___

Answer:
The sum of the two numbers is 14.

Explanation:
The sum can be defined as the result of two or more numbers by adding. So here the sum of the two numbers 5 + 9 is 14. So to get the same sum we need to add 4, so the sum of the 10 + 4= 14, which is the same as the 5 + 9 sum.

Question 6.
What is the difference?
45 – 13 = ___

Answer:
The subtraction of 13 from 45 is 32. And there are three tens and two ones.

Explanation:
In the above, we can see that there are four tens and three ones. So here we need to subtract 13 from 45, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 13 from 45 is 45 – 13= 32 and there are three tens and two ones.

Lesson 5.8 Add to Find Differences

Essential Question
How can you use addition to solve subtraction problems?
_______ ____ markers

Now draw pictures to show the next part of the problem. Write a number sentence for your drawing.
_______ ____ markers

Math Talk
MATHEMATICAL PRACTICES
Describe what happens when you add back the number that you had subtracted.

Model and Draw

Count up from the number you are subtracting to find the difference.

Start at 38. Count up to 40.

Then count up 5 more to 45.

So, 45 − 38 = __.
Answer: 45 – 38 = 7

Share and Show MATH BOARD

Use the number line. Count up to find the difference.

Question 1.
36 – 27 = ___

Answer:
The subtraction of 27 from 36 is 9. And there are zero tens and nine ones.

Explanation:
Here we need to subtract 27 from 36, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 27 from 36 is 36 – 27= 9 and there are zero tens and nine ones.

Question 2.
56 – 49 = __

Answer:
The subtraction of 49 from 56 is 7. And there are zero tens and seven ones.

Explanation:
Here we need to subtract 49 from 56, so we will perform a regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 49 from 56 is 56 – 49= 7 and there are zero tens and seven ones.

Go Math Second Grade Pdf Add to Find Differences Lesson 5.8 Question 3.
64 – 58 = __

Answer:
The subtraction of 58 from 64 is 6. And there are zero tens and six ones.

Explanation:
Here we need to subtract 58 from 64, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 58 from 64 is 64 – 58= 6 and there are zero tens and six ones.

On Your Own

Use the number line. Count up to find the difference.

Question 4.
33 – 28 = __

Answer:
The subtraction of 28 from 33 is 5. And there are zero tens and five ones.

Explanation:
In the above image, we can see that there are three tens and three ones. So here we need to subtract 28 from 33, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 28 from 33 is 33 – 28= 5 and there are zero tens and five ones.

Question 5.
45 – 37 = __

Answer:
The subtraction of 37 from 45 is 8. And there are zero tens and eight ones.

Explanation:
In the above image, we can see that there are four tens and five ones. So here we need to subtract 37 from 45, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 37 from 45 is 45 – 37= 8 and there are zero tens and eight ones.

Question 6.
58 – 49 = __

Answer:
The subtraction of 49 from 58 is 9. And there are zero tens and nine ones.

Explanation:
In the above image, we can see that there are five tens and eight ones. So here we need to subtract 49 from 58, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 49 from 58 is 58 – 49= 49 and there are zero tens and nine ones.

Question 7.
THINK SMARTER
There were 55 books on the table. Sandra picked up some of the books. Now there are 49 books on the table. How many books did Sandra pick up?

__ books

Answer:
The number of books picked up by the Sandra is 6 books.

Explanation:
As there were 55 books on the table and Sandra picked up some of the books. And Now there are 49 books on the table, so to find how many books did Sandra pick up is we will perform subtraction. So the number of books picked up by the Sandra is 55 – 49= 6 books.

Problem Solving • Applications

Solve. You may wish to use the number line to help.

Question 8.
There are 46 game pieces in a box. Adam takes 38 game pieces out of the box. How many game pieces are still in the box?

__ game pieces

Answer:
The number of game pieces is still in the box is 8 game pieces.

Explanation:
As there are 46 game pieces in a box and Adam takes 38 game pieces out of the box. So there will be 46 – 38= 8 game pieces.

Question 9.
THINK SMARTER
Rachel had 27 craft sticks. Then she gave 19 craft sticks to Theo. How many craft sticks does Rachel have now?
Circle the number from the box to make the sentence true.
Rachel has craft sticks now.
Explain how you can use addition to solve the problem.
__________________________
__________________________

Answer:
The number of craft sticks Rachel has now is 27 – 19 = 8 craft sticks.

Explanation:
As Rachel had 27 craft sticks and then she gave 19 craft sticks to Theo. So the number of craft sticks Rachel has now is 27 – 19 = 8 craft sticks.

TAKE HOME ACTIVITY
• Have your child describe how he or she used a number line to solve one problem in this lesson.

Answer:
The number line is used by performing we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. Then we will make the number of jumps by the difference what we had got and we will make jump from minuend number to the subtrahend and will count the number of jumps.

Add to Find Differences Homework & practice 5.8

Use the number line. Count up to find the difference.

Question 1.
36 – 29 = __

Answer:
The subtraction of 29 from 36 is 7. And there are zero tens and seven ones.

Explanation:
In the above image, we can see that there are three tens and six ones. So here we need to subtract 29 from 36, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 29 from 36 is 36 – 29= 7 and there are zero tens and seven ones.

Question 2.
43 – 38 = __

Answer:
The subtraction of 38 from 43 is 5. And there are zero tens and five ones.

Explanation:
In the above image, we can see that there are three tens blocks and six one’s blocks. So here we need to subtract 8 from 51, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 38 from 43 is 43 – 38= 5 and there are zero tens and five ones.

Problem Solving

Solve. You may wish to use the number line.

Question 3.
Jill has 63 index cards. She uses 57 of them for a project. How many index cards does Jill have now?
__ index cards

Answer:
The number of index cards does Jill has now is 6 index cards.

Explanation:
As Jill has 63 index cards and she uses 57 of them for a project, so the number of index cards does Jill have now is 63 – 57 = 6 index cards.

Question 4.
WRITE Math
Explain how a number line can be used to find the difference for 34 – 28.
__________________________
__________________________

Lesson Check

Use the number line. Count up to find the difference.

Question 1.
82 − 75 = __

Answer:
The subtraction of 75 from 82 is 7. And there are zero tens and seven ones.

Explanation:
In the above image, we can see that there are eight tens and two ones. So here we need to subtract 75 from 82, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 75 from 82 is 82 – 75= 7 and there are zero tens and seven ones.

Question 2.
90 − 82 = __

Answer:
The subtraction of 82 from 90 is 8. And there are zero tens and eight ones.

Explanation:
In the above image, we can see that there are nine tens and zero ones. So here we need to subtract 82 from 90, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 82 from 90 is 90 – 82= 8and there are zero tens and eight ones.

Spiral Review

Question 3.
Jordan has 41 toy cars at home. He brings 24 cars to school. How many cars are at home?
__ cars

Answer:
The number of cars is at home is 17 cars.

Explanation:
As Jordan has 41 toy cars at home and he brings 24 cars to school, so the number of cars are at home is 41 – 24= 17 cars.

Question 4.
Pam has 15 fish. 9 are goldfish and the rest are guppies. How many fish are guppies?
__ guppies

Answer:
The number of fishes is guppies is 6 guppies.

Explanation:
As Pam has 15 fishes and 9 are gold fishes and the rest are guppies, so the number of fishes are guppies is 15 – 9= 6 guppies.

Question 5.
What is the sum?

Answer:
The sum of the two numbers is 54.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 35 + 19 is 54.

Question 6.
Each table has 5 pencils. There are 3 tables. How many pencils are there altogether?
__ pencils

Answer:
The total number of pencils will be 15 pencils are there altogether.

Explanation:
As each table has 5 pencils and there are 3 tables, so the total number of pencils will be 5 × 3= 15 pencils are there altogether.

Lesson 5.9 Problem Solving • Subtraction

Essential Question
How can drawing a diagram help when solving subtraction problems?

Jane and her mom made 33 puppets for the craft fair. They sold 14 puppets. How many puppets do they still have?

Unlock the Problem

What do I need to find?
they still have

What information do I need to use?

They made __ puppets.
They sold __ puppets.

Show how to solve the problem.

HOME CONNECTION
• Your child used a bar model and a number sentence to represent the problem. Using a bar model helps show what is known and what is needed to solve the problem.

Answer:
The total number of puppets do they left is 19 puppets.

Explanation:
As Jane and her mom made 33 puppets for the craft fair and they sold 14 puppets, so they still have 33 – 14= 19 puppets. Here we need to subtract 14 from 33, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 14 from 33 is 33 – 14= 19 and there are one ten and nine ones. So they will have 19 puppets left.

Try Another Problem

Label the bar model. Write a number sentence with a for the missing number. Solve.

Question 1.
Carlette had a box of 46 craft sticks. She used 28 craft sticks to make a sailboat. How many craft sticks were not used?

Answer:
They will have 18 craft sticks left.

Explanation:
As Carlette had a box of 46 craft sticks and she used 28 craft sticks to make a sailboat. So the number of craft sticks that are not used is 46 – 28= 18 craft sticks. Here we need to subtract 28 from 46, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 28 from 46 is 46 – 28= 18 and there are one ten and eight ones. So they will have 18 craft sticks left.

Question 2.
Rob’s class made 31 clay bowls. Sarah’s class made 15 clay bowls. How many more clay bowls did Rob’s class make than Sarah’s class?

______ ___ more clay bowls

Answer:
The number of more clay bowls did Rob’s class make than Sarah’s class is 31 – 15= 16 clay bowls.

Explanation:
As Rob’s class made 31 clay bowls and Sarah’s class made 15 clay bowls. So the number of more clay bowls did Rob’s class make than Sarah’s class is 31 – 15= 16 clay bowls. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of more clay bowls did Rob’s class make than Sarah’s class is 16 clay bowls.

Share and Show MATH BOARD

Label the bar model. Write a number sentence with a for the missing number. Solve.

Question 3.
Mr. Hayes makes 32 wooden frames. He gives away 15 frames as gifts. How many frames does he still have?

Answer:
The number of many frames does he still have now is 32 – 15= 17 frames.

Explanation:
As Mr. Hayes makes 32 wooden frames and he gives away 15 frames as gifts. So the number of many frames does he still have now is 32 – 15= 17 frames. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of many frames does he still have now is 17 frames.

Question 4.
Wesley has 21 ribbons in a box. He has 15 ribbons on the wall. How many more ribbons does he have in the box than on the wall?

__ more ribbons

_____

Answer:
The number of many more ribbons does he have in the box than on the wall is 6 more ribbons.

Explanation:
As Wesley has 21 ribbons in a box and he has 15 ribbons on the wall. So the number of many more ribbons does he have in the box than on the wall is 21 – 15= 6 more ribbons. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of many more ribbons does he have in the box than on the wall is 6 more ribbons.

Question 5.
THINK SMARTER
Jennifer wrote 9 poems at school and 11 poems at home. She wrote 5 more poems than Nell. How many poems did Nell write?

__ poems

Answer:
Given,
Jennifer wrote 9 poems at school and 11 poems at home. She wrote 5 more poems than Nell.
9 + 11 = 20
20 – 5 = 15 poems
Nell write 15 poems.

On Your Own

Question 6.
GO DEEPER
There are 70 children. 28 children are hiking and 16 are at a picnic. The rest of the children are playing soccer. How many children are playing soccer?
Draw a model with bars for the problem. Describe how your drawing shows the problem. Then solve the problem.
__________________________
__________________________
__________________________

Answer:
Given,
There are 70 children. 28 children are hiking and 16 are at a picnic.
70 – 28 – 16 = 26
26 children are playing soccer.

Question 7.
THINK SMARTER
There are 48 crackers in a bag. The children eat 25 crackers. How many crackers are still in the bag? Circle the bar model that can be used to solve the problem.

Write a number sentence with a for the missing number. Solve.
__________________________
___ crackers

TAKE HOME ACTIVITY
• Ask your child to explain how he or she solved one of the problems on this page.

Answer:
We will perform subtraction by breaking the two-digit number into tens place digit and ones place digit. Then the other number will be placed below the number. If the minuend number is less than the subtrahend number then we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So by this, we will perform the subtraction.

Problem Solving • Subtraction Homework & Practice 5.9

Label the bar model. Write a number sentence with a for the missing number. Solve.

Question 1.
Megan picked 34 flowers. Some of the flowers are yellow and 18 flowers are pink. How many of the flowers are yellow?
___ yellow flowers

___

Answer:

Question 2.
Alex had 45 toy cars. He put 26 toy cars in a box. How many toy cars are not in the box?
___ toy cars

Answer:
Given,
Alex had 45 toy cars. He put 26 toy cars in a box.

19 toy cars are not in the box.

Question 3.
WRITE Math
Explain how bar models show a problem in a different way.
__________________________
__________________________
__________________________
__________________________

Lesson Check

Question 1.
There were 39 pumpkins at the store. Then 17 of the pumpkins were sold. How many pumpkins are still at the store?
__ pumpkins

Answer:
Given,
There were 39 pumpkins at the store. Then 17 of the pumpkins were sold.
39 – 17 = 22
Thus 22 pumpkins are still at the store.

Question 2.
There were 48 ants on a hill. Then 13 of the ants marched away. How many ants are still on the hill?
__ ants

Answer:
Given,
There were 48 ants on a hill. Then 13 of the ants marched away.
48 – 13 = 35 ants
Therefore 35 ants are still on the hill.

Spiral Review

Question 3.
Ashley had 26 markers. Her friend gave her 17 more markers. How many markers does Ashley have now?
__ markers

Answer:
Given,
Ashley had 26 markers. Her friend gave her 17 more markers
26 – 17 = 9
Ashley has 9 markers now.

Question 4.
What is the sum?

Answer: 46 + 24 = 70

Question 5.
Write a subtraction fact that will give the same difference as 15 − 7.
10 – __

Answer: 10 – 2 = 8

Question 6.
What is the sum?
34 + 5 = __

Answer: 39

Lesson 5.10 Algebra • Write Equations to Represent Subtraction

Essential Question
How do you write a number sentence to represent a problem?

Listen and Draw

Draw to show the problem. Write a number sentence. Then solve.
_______________

Math Talk
MATHEMATICAL PRACTICES
Describe how your drawing shows the problem.

Model and Draw

You can write a number sentence to
show a problem.
Liza has 65 postcards. She gives 24 postcards to Wesley. How many postcards does Liza have now?

Liza has __ postcards now.

Answer: 41

Share and Show MATH BOARD

Write a number sentence for the problem. Use a for the missing number. Then solve.

Question 1.
There were 32 birds in the trees. Then 18 birds flew away. How many birds are in the trees now?

__ birds

Answer:
Given,
There were 32 birds in the trees. Then 18 birds flew away.
32 – 18 = 14 birds

Question 2.
Carla read 43 pages in her book. Joe read 32 pages in his book. How many more pages did Carla read than Joe?
________
__ more pages

Answer:
Given,
Carla read 43 pages in her book. Joe read 32 pages in his book.
43 – 32 = 11 more pages

On Your Own

Write a number sentence for the problem. Use a for the missing number. Then solve.

Question 3.
There were 40 ants on a rock. Some ants moved to the grass. Now there are 26 ants on the rock. How many ants moved to the grass?
___
__ ants

Answer:
Given,
There were 40 ants on a rock. Some ants moved to the grass.
Now there are 26 ants on the rock.
40 – 26 = 14 ants

Question 4.
THINK SMARTER
Keisha had a bag of ribbons. She took 29 ribbons out of the bag. Then there were 17 ribbons still in the bag. How many ribbons were in the bag to start?

_______
__ ribbons

Answer:
Keisha had a bag of ribbons. She took 29 ribbons out of the bag.
Then there were 17 ribbons still in the bag.
29 – 17 = 12 ribbons

Question 5.
GO DEEPER
There are 50 bees in a hive. Some bees fly out. If fewer than 20 bees are still in the hive, how many bees could have flown out?
__ bees

Answer:
Given,
There are 50 bees in a hive. Some bees fly out.
50 – 20 = 30 bees

Problem Solving • Applications

Question 6.
MATHEMATICAL PRACTICE
Make Connections Brendan made this number line to find a difference. What was he subtracting from 100? Explain your answer.

__________________________
__________________________
__________________________
__________________________

Answer: 100 – 57 = 43

Question 7.
THINK SMARTER
There are 52 pictures on the wall. 37 are wild cats and the rest are birds. How many of the pictures are birds? Use the numbers and symbols on the tiles to complete the number sentence for the problem.

_______________
___ birds

Answer: 52 – 37 = 15 birds

TAKE HOME ACTIVITY
• Have your child explain how he or she solved one problem in this lesson.

Algebra • Write Equations to Represent Subtraction Homework & Practice 5.10

Write a number sentence for the problem. Use a for the missing number. Then solve.

Question 1.
29 children rode their bikes to school. After some of the children rode home, there were 8 children with bikes still at school. How many children rode their bikes home?
________
__ children

Answer:
Given,
29 children rode their bikes to school.
29 – 8 = 21 children

Problem Solving

Solve. Write or draw to explain.

Question 2.
There were 21 children in the library. After 7 children left the library, how many children were still in the library?
__ children

Answer:
Given,
There were 21 children in the library. After 7 children left the library
21 – 7 = 14 children

Question 3.
WRITE Math
Describe different ways that you can show a story problem. Use one of the problems in this lesson as your example.
__________________________
__________________________
__________________________
__________________________

Lesson Check

Question 1.
Cindy had 42 beads. She used some beads for a bracelet. She has 14 beads left. How many beads did she use for the bracelet?
__ beads

Answer:
Given,
Cindy had 42 beads. She used some beads for a bracelet.
She has 14 beads left.
42 – 14 = 28 beads

Question 2.
Jake had 36 baseball cards. He gave 17 cards to his sister. How many baseball cards does Jake have now?
__ cards

Answer:
Given,
Jake had 36 baseball cards. He gave 17 cards to his sister.
36 – 17 = 19 cards
Jake has 19 cards now.

Spiral Review

Question 3.
What is the sum?
6 + 7 = __

Answer: 6 + 7 = 13

Question 4.
What is the difference?
16 – 9 = __

Answer: 16 – 9 = 7

Question 5.
What is the difference?

Answer: 7

Question 6.
Write an addition fact that will give the same sum as 6 + 8.
10 + ___

Answer:
6 + 8 = 14
10 + 4 = 14

Lesson 5.11 Solve Multistep Problems

Essential Question
How do you decide what steps to do to solve a problem?

Listen and Draw

Label the bar model to show each problem. Then solve.

Math Talk
MATHEMATICAL PRACTICES

Describe how the two bar models are different.

Model and Draw

Bar models help you know what to do to solve a problem.
Ali has 27 stamps. Matt has 38 stamps. How many more stamps are needed so they will have 91 stamps?

They need __ more stamps

Share and Show MATH BOARD

Complete the bar models for the steps you do to solve the problem.

Question 1.
Jen has 93 beads. Ana has 46 red beads and 29 blue beads. How many more beads does Ana need to have 93 beads also?


__ more beads

Answer: 18 more beads

On Your Own

Complete the bar models for the steps you do to solve the problem.

Question 2.
Max has 35 trading cards. He buys 22 more cards. Then he gives 14 cards to Rudy. How many cards does Max have now?

Answer:
Given,
Max has 35 trading cards. He buys 22 more cards. Then he gives 14 cards to Rudy.
35 + 22 = 57
57 – 14 = 43 cards

Question 3.
Drew has 32 toy cars. He trades 7 of those cars for 11 other toy cars. How many toy cars does Drew have now?

Answer:
Given,
Drew has 32 toy cars. He trades 7 of those cars for 11 other toy cars.
7 + 11 = 18
32 – 18 = 14

Question 4.
Marta and Debbie each have 17 ribbons. They buy 1 package with 8 ribbons in it. How many ribbons do they have now?

Answer:
Given,
Marta and Debbie each have 17 ribbons. They buy 1 package with 8 ribbons in it.
They have 25 ribbons in all.

Problem Solving • Applications WRITE Math

Question 5.
Shelby had 32 rocks. She finds 33 more rocks at the park and gives 28 rocks to George. How many rocks does she have now?


__ rocks

Answer:
Given,
Shelby had 32 rocks. She finds 33 more rocks at the park and gives 28 rocks to George.
32 + 33 = 55 rocks
55 – 28 = 27 rocks

Question 6.
Benjamin finds 31 pinecones at the park. Together, Jenna and Ellen find the same number of pinecones as Benjamin. How many pinecones could each girl have found?

Jenna: __ pinecones
Ellen: __ pinecones

Answer:
1) Write the Equation: 31/2 = how many pine cones Jenna and Ellen found.
2) Solve 31/2= 15.5
So each girl found 15 and a half pine cones. Or one girl found 15 and the other found 16. If you want to have each girl find an even amount.

Question 7.
THINK SMARTER
Tanya finds 22 leaves. Maurice finds 5 more leaves than Tanya finds. How many leaves do the children find? Draw to show how you solve the problem.

__ leaves

Answer: 22 + 5 = 27 leaves

TAKE HOME ACTIVITY
• Have your child explain how he or she would solve Exercise 6 if the number 31 was changed to 42.

Solve Multistep Problems Homework & Practice 5.11

Complete the bar models for the steps you do to solve the problem

Question 1.
Greg has 60 building blocks. His sister gives him 17 more blocks. He uses 38 blocks to make a tower. How many blocks are not used in the tower?

__ blocks

Answer:
The number of many blocks are not used in the tower is 5 blocks.

Explanation:
As Greg has 60 building blocks and his sister gives him 17 more blocks, so the number of blocks did Greg had now is 60 – 17= 43 blocks and he uses 38 blocks to make a tower so the number of many blocks are not used in the tower is 43 – 38= 5 blocks. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of many blocks are not used in the tower is 5 blocks.

Problem Solving

Solve. Write or draw to explain.

Question 2.
Ava has 25 books. She gives away 7 books. Then Tom gives her 12 books. How many books does Ava have now?
__ books

Answer:
The number of many books does Ava have now is 6 books.

Explanation:
As Ava has 25 books and she gives away 7 books, then Ava will have 25 – 7= 18 books and then Tom gives her 12 books, so the number of books did Ava have now is 18 – 12= 6 books. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the number of many books does Ava have now is 6 books.

Question 3.
WRITE Math
Choose one of the problems on this page. Describe how you decided what steps were needed to solve the problem.
___________________________
___________________________
___________________________
___________________________

Lesson Check

Question 1.
Sara has 18 crayons. Max has 19 crayons. How many more crayons do they need to have 50 crayons altogether?
__ crayons

Answer:
They need 13 crayons more do they need to have 50 crayons altogether.

Explanation:
As Sara has 18 crayons and Max has 19 crayons, so the total number of crayons do they have together is 18 + 19= 37 crayons. So to get 50 crayons altogether we need to perform subtraction. So we need 50 – 37= 13 crayons more do they need to have 50 crayons altogether. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So They need 13 crayons more do they need to have 50 crayons altogether.

Question 2.
Jon has 12 pennies. Lucy has 17 pennies. How many more pennies do they need to have 75 pennies altogether?
__ pennies

Answer:
They need 46 pennies more to have 75 pennies altogether.

Explanation:
As Jon has 12 pennies and Lucy has 17 pennies, so the total number of pennies together they have is 29 pennies. So to 75 pennies together we need to perform subtraction 75 – 29= 46 pennies. So the number of many frames does he still have now is 32 – 15= 17 frames. So we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the total number of pennies together they have is 29 pennies. So to 75 pennies together we need to perform subtraction 75 – 29= 46 pennies.

Spiral Review

Question 3.
What is the difference?
58 – 13 = __

Answer:
The subtraction of 8 from 51 is 43. And there are four tens and three ones.

Explanation:
In the above image, we can see that there are three tens blocks and six one’s blocks. So here we need to subtract 8 from 51, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 8 from 51 is 51 – 8= 43 and there are four tens and three ones.

Question 4.
What is the sum?

Answer:
The sum of the two numbers is 62.

Explanation:
The sum can be defined as the resulting of two or more numbers by adding. So here the sum of the two numbers 47 + 15 is 62.

Question 5.
There are 26 cards in a box. Bryan takes 12 cards. How many cards are still in the box?
__ cards

Answer:
The number of cards still in the box is 14 cards.

Explanation:
As there are 26 cards in a box and Bryan takes 12 cards, so the number of cards still in the box is 26 – 12= 14 cards. we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 12 from 26 is 26 – 12= 14 and there are zero tens and four ones.

2-Digit Subtraction Chapter 5 Review Test

Question 1.
Do you need to regroup to subtract? Choose Yes or No.

Question 2.
Use the number line. Count up to find the difference.
52 – 48 = __

Answer:
The subtraction of 48 from 52 is 4. And there are zero tens and four ones.

Explanation:
Here we need to subtract 48 from 52, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 48 from 52 is 52 – 48= 4 and there are zero tens and four ones.

Question 3.
Ed has 28 blocks. Sue has 34 blocks. Who has more blocks? How many more? Label the bar model. Solve.

Circle the word and number from each box to make the sentence true.

Break apart the number you are subtracting. Write the difference?

Answer:
Sue has more number of blocks tha Ed. And had 6 more blocks than Ed.

Explanation:
Ed has 28 blocks and Sue has 34 blocks. As 34 is greater than 28, so Sue has more number of blocks and has 34 – 28= 6 more blocks than the Ed. So to perform Break apart the number subtraction for 34 – 28 first we will break into tens and ones. So here we will break 28 as 20 and 8 and we will subtract 20 and we will get the result as 14. Then we will start from 14 and subtract 8 to get to 6. So we will get the result as 6. The subtraction of 34 – 28 is 6.

Question 4.

Answer:
The subtraction of 42 – 8 is 34.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 8 as 2 and 6 and we will subtract 2 and we will get the result as 42. Then we will start from 42 and subtract 6 to get to 34 and then. So we will get the result as 34. The subtraction of 42 – 8 is 34.

Question 5.

Answer:
The subtraction of 53 – 16 is 37.

Explanation:
Here, we will break apart the number that we are subtracting. So first we will break into tens and ones. So here we will break 10 as 6 and we will subtract 10 and we will get the result as 43. Then we will start from 43 and subtract 6 to get to 37 and then. So we will get the result as 37. The subtraction of 53 – 16 is 37.

Question 6.
What is 33 − 19? Use the numbers on the tiles to rewrite the subtraction problem. Then find the difference.

Answer:
The subtraction of 19 from 33 is 14. And there are one ten and four ones.

Explanation:
In the above image, we can see that there are three tens and three ones. So here we need to subtract 19 from 33, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 19 from 33 is 33 – 19= 14 and there are one ten and four ones.

Question 7.
GO DEEPER
Jacob’s puzzle has 84 pieces. Jacob puts together 27 pieces in the morning. He puts together 38 more pieces in the afternoon. How many pieces does Jacob need to put together to finish the puzzle?

Complete the bar models for the steps you do to solve the problem.
__ more pieces

Answer:
Jacob needs 19 pieces to complete the puzzle.

Explanation:
Jacob’s puzzle has 84 pieces and Jacob puts together 27 pieces in the morning and he puts together 38 more pieces in the afternoon. So the total number of puzzles kept by Jacob together in the morning and the afternoon is 27 + 38= 65 pieces. So Jacob needs 84 – 65= 19 pieces to complete the puzzle.

Regroup if you need to. Write the difference.

Question 8.

Answer:
The subtraction of 5 from 28 is 23. And there are two tens and three ones.

Explanation:
In the above image, we can see that there are two tens and eight ones. So here we need to subtract 5 from 28, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 5 from 28 is 28 – 5= 23 and there are two ten and three ones.

Question 9.

Answer:
The subtraction of 12 from 32 is 23. And there are two tens and three ones.

Explanation:
In the above image, we can see that there are two tens and eight ones. So here we need to subtract 5 from 28, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 5 from 28 is 28 – 5= 23 and there are two ten and three ones.

Question 10.
Find the difference.

Answer:
The subtraction of 62 from 90 is 28. And there are two tens and eight ones.

Explanation:
In the above image, we can see that there are nine tens and zero ones. So here we need to subtract 62 from 90, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 62 from 90 is 90 – 62= 28 and there are two tens and eight ones.

Fill in the bubble next to one number from each column to show the difference.

Question 11.
There are 22 children at the park. 5 children are on the swings. The rest of the children are playing ball. How many children are playing ball?

Answer:
The number of children is playing ball is 17 children.

Explanation:
As there are 22 children at the park and 5 children are on swings and the rest of the children are playing ball. So the number of children are playing ball is 22 – 15= 17 children.

Question 12.
THINK SMARTER
Subtract 27 from 43. Draw to show the regrouping.
Fill in the bubble next to all the ways to write the difference.

Answer:
The subtraction of 27 from 43 is 16. And there are one ten and six ones.

Explanation:
In the above image, we can see that there are two tens and eight ones. So here we need to subtract 27 from 43, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 27 from 43 is 43 – 27= 43 and there are one ten and six ones.

Question 13.
Jill collects stamps. Her stamp book has space for 64 stamps. She needs 18 more stamps to fill the book. How many stamps does Jill have now?
Write a number sentence for the problem.
Use a for the missing number. Then solve.
________
Jill has __ stamps.

Answer:
The number of does Jill have now is 46 stamps.

Explanation:
Jill collects stamps and her stamp book has space for 64 stamps then she needs 18 more stamps to fill the book. So the number of does Jill have now is 64 – 18= 46 stamps.

Question 14.
Draw a quick picture to solve. Write the difference.

Explain what you did to find the difference.
_______________
_______________

Answer:
The subtraction of 25 from 62 is 37. And there are three tens and seven ones.

Explanation:
In the above image, we can see that there are two tens and eight ones. So here we need to subtract 25 from 62, so we will perform regrouping of subtraction. Here Regrouping in subtraction is a process of exchanging one ten into ten ones. We use regrouping in subtraction when the minuend is smaller than the subtrahend. So the subtraction of 25 from 62 is 62 – 25= 37 and there are three tens and seven ones.

Conclusion:

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2-Digit Addition Go Math Grade 2 Chapter 4 Answer Key Pdf

To achieve better grades in Grade 2, students need to solve all questions, chapter tests, review tests, Homework & Practice, included in Go Math Grade 2 Textbooks. So, teachers and students can find this Go Math Answer Key for Grade 2 more helpful in understanding the concepts as well as to support teachers. With the help of the Go Math Primary School Grade 2 Answer Key, you can think deeply regarding what you are learning, and you will really learn math easily just like that. Click on the respective topic you wish to prepare and remediate the knowledge gap.

Chapter 4 – 2 Digit Addition

• 2-Digit Addition Show What You Know – Page 234
• 2-Digit Addition Vocabulary Builder – Page 235
• 2-Digit Addition Game: What is the Sum? – Page 236
• 2-Digit Addition Vocabulary Game – Page(236A-236B)

Lesson: 1 Break Apart Ones to Add

• Lesson 4.1 Break Apart Ones to Add – Page(237-242)
• Break Apart Ones to Add Homework & Practice 4.1 – Page(241-242)

Lesson: 2 Use Compensation

• Lesson 4.2 Use Compensation – Page(243-248)
• Use Compensation Homework & Practice 4.2 – Page(247-248)

Lesson: 3 Break Apart Addends as Tens and Ones

• Lesson 4.3 Break Apart Addends as Tens and Ones – Page(249-254)
• Break Apart Addends as Tens and Ones Homework & Practice 4.3 – Page(253-254)

Lesson: 4 Model Regrouping for Addition

• Lesson 4.4 Model Regrouping for Addition – Page(255-260)
• Model Regrouping for Addition Homework & Practice 4.4 – Page(259-260)

Lesson: 5 Model and Record 2-Digit Addition

• Lesson 4.5 Model and Record 2-Digit Addition – Page(261-266)
• Model and Record 2-Digit Addition Homework & Practice 4.5 – Page(265-266)

Lesson: 6 2-Digit Addition

• Lesson 4.6 2-Digit Addition – Page(267-272)
• 2-Digit Addition Homework & practice 4.6 – Page(271-272)

Lesson: 7 Practice 2-Digit Addition

• Lesson 4.7 Practice 2-Digit Addition – Page(273-278)
• Practice 2-Digit Addition Homework & Practice 4.7 – Page(277-278)

Lesson: 8 Rewrite 2-Digit Addition

• Lesson 4.8 Rewrite 2-Digit Addition – Page(279-284)
• Rewrite 2-Digit Addition Homework & Practice 4.8 – Page(283-284)

Lesson: 9 Problem Solving • Addition

• Lesson 4.9 Problem Solving • Addition – Page(285-290)
• Problem Solving • Addition Homework & Practice 4.9 – Page(289-290)

Lesson: 10 Algebra • Write Equations to Represent Addition

• Lesson 4.10 Algebra • Write Equations to Represent Addition – Page(291-296)
• Algebra • Write Equations to Represent Addition Homework & Practice 4.10 – Page(295-296)

Lesson: 11 Algebra • Find Sums for 3 Addends

• Lesson 4.11 Algebra • Find Sums for 3 Addends – Page(297-302)
• Algebra • Find Sums for 3 Addends Homework & Practice 4.11 – Page(301-302)

Lesson: 12 Algebra • Find Sums for 4 Addends

• Lesson 4.12 Algebra • Find Sums for 4 Addends – Page(303-308)
• Algebra • Find Sums for 4 Addends Homework & Practice 4.12 – Page(307-308)
• 2-Digit Addition Chapter 4 Review/Test – Page(309-312)

Curious about Math

The keys of a modern piano are made from wood or plastic. A modern piano has 36 black keys and 52 white keys. How many keys is this in all?

Answer:
The number of keys = 88.

Explanation:
In the above-given question,
given that,
There are 36 black keys and 52 white keys.
36 + 52 = 88.
The total number of keys = 88.

2-Digit Addition Show What You Know

Addition Patterns
Add 2. Complete each addition sentence.

Question 1.

Answer:
The number is 3.

Explanation:
In the above-given question,
given that,
the numbers are 1 and 2.
1 + 2 = 3.
The number is 3.

Question 2.
2 + _2_ = _4_

Answer:
The number is 4.

Explanation:
In the above-given question,
given that,
the numbers are 2 and 2.
2 + 2 = 4.
The number is 4.

Question 3.
3 + _2_ = _5_

Answer:
The number is 5.

Explanation:
In the above-given question,
given that,
the numbers are 3 and 2.
3 + 2 = 5.
The number is 5.

Question 4.
4 + _2_ = _6_

Answer:
The number is 6.

Explanation:
In the above-given question,
given that,
the numbers are 4 and 2.
4 + 2 = 6.
The number is 6.

Question 5.
5 + _2_ = _7__

Answer:
The number is 7.

Explanation:
In the above-given question,
given that,
the numbers are 5 and 2.
5 + 2 = 7.
The number is 7.

Question 6.
6 + _2_ = _8__

Answer:
The number is 8.

Explanation:
In the above-given question,
given that,
the numbers are 6 and 2.
6 + 2 = 8.
The number is 8.

Addition Facts
Write the sum

Question 7.

Answer:
The sum is 10.

Explanation:
In the above-given question,
given that,
the numbers are 7 and 3.
7 + 3 = 10.
so the sum is 10.

Question 8.

Answer:
The sum is 16.

Explanation:
In the above-given question,
given that,
the numbers are 8 and 8.
8 + 8 = 16.
so the sum is 16.

Question 9.

Answer:
The sum is 13.

Explanation:
In the above-given question,
given that,
the numbers are 6 and 7.
6 + 7 = 13.
so the sum is 13.

Question 10.

Answer:
The sum is 8.

Explanation:
In the above-given question,
given that,
the numbers are 4 and 4.
4 + 4 = 8.
so the sum is 8.

Question 11.

Answer:
The sum is 14.

Explanation:
In the above-given question,
given that,
the numbers are 9 and 5.
9 + 5 = 14.
so the sum is 14.

Question 12.

Answer:
The sum is 15.

Explanation:
In the above-given question,
given that,
the numbers are 8 and 7.
8 + 7 = 15.
so the sum is 15.

Tens and Ones
Write how many tens and ones for each number.

Question 13.
43

_4_ tens _3_ ones

Answer:
There are 4 tens and 3 ones.

Explanation:
In the above-given question,
the number is 43.
there are 4 tens and 3 ones.
40 + 3 = 43.
the number is 43.

Question 14.
68

_6_ tens _8_ ones

Answer:
There are 6 tens and 8 ones.

Explanation:
In the above-given question,
the number is 68.
there are 6 tens and 8 ones.
60 + 8 = 68.
the number is 68.

2-Digit Addition Vocabulary Builder

Visualize It
Use review words to fill in the graphic organizer.

Answer:
The numbers 7 and 4 are addends.
The number 11 is the sum.

Explanation:
In the above-given question,
given that,
the number is 7 + 4 = 11.
the numbers 7 and 4 are addends.
the number 11 is the sum.

Understand Vocabulary

Question 1.
Write a number with the digit 3 in the tens place.
__32__

Answer:
The number is 32.

Explanation:
In the above-given question,
given that,
the number with the digit 3 in the tens place.
30 + 2 = 32.
so the number is 32.

Question 2.
Write a number with the digit 5 in the ones place.
_25__

Answer:
The number is 25.

Explanation:
In the above-given question,
given that,
the number with the digit 5 in the ones place.
20 + 5 = 25.
so the number is 25.

Question 3.
Write a number that has the same digit in the tens place and in the ones place.
__11__

Answer:
The number is 11.

Explanation:
In the above-given question,
given that,
the number has the same digit in the tens place and in the ones place.
10 + 1 = 11.
so the number is 11.

Question 4.
Write a number with digits that have a sum of 8.
_26___

Answer:
The number is 26.

Explanation:
In the above-given question,
given that,
the number with digits that have a sum of 8.
2 + 6 = 8.
so the number is 26.

2-Digit Addition Game: What is the Sum?

Materials

Play with a partner.

1. Put your on START.
2. Toss the . Move that many spaces.
3. Say the sum. Your partner checks your answer.
4. If your answer is correct, find that number in the middle of the board. Put one of your on that number.
5. Take turns until both players reach FINISH. The player with more on the board wins.

Answer:
The numbers are 17 and 11.

Explanation:
In the above-given question,
given that,
when 1st player tosses the sum is 17.
9 + 8 = 17.
when the 2nd player tosses the sum is 11.
6 + 5 = 11.

2-Digit Addition Vocabulary Game

Going Places with GOMATH! Words

Concentration

For 2 to 3 players
Materials
• 1 set of word cards
How to Play

1. Put the cards face-down in rows. Take turns to play.
2. Choose two cards. Turn the cards face-up.
• If the cards match, keep the pair and take another turn.
• If the cards do not match, turn them over again.
3. The game is over when all cards have been matched. The players count their pairs. The player with the most pairs wins.

The Write Way

Reflect
Choose one idea. Write about it in the space below.

• Explain how drawing quick pictures helps you add 2-digit numbers.
• Tell about all the different ways you can add 2-digit numbers.
• Write three things you know about regrouping.

Answer:
The quick pictures can help easily by seeing the figures.
We can add 2 digit numbers in many different ways.

Explanation:
In the above-given question,
given that,
the figures that can be made easily by seeing is known as quick pictures.
we can add 2 digit numbers in many different ways.

Lesson 4.1 Break Apart Ones to Add

Essential Question
How does breaking apart a number make it easier to add?

Listen and Draw

Use . Draw to show what you did.

Answer:
The number is 43.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
4 is in tens digit and 3 is in 1s digit.
40 + 3 = 43.
The number is 43.

Math Talk
MATHEMATICAL PRACTICES

Describe what you did with the blocks.

Model and Draw

Break apart ones to make a ten. Use this as a way to add.

Answer:
The number is 35.

Explanation:
In the above-given question,
given that,
27 + 8 = 35.
27 + 3 + 5.
30 + 5 = 35.
the number is 35.

Share and Show MATH BOARD

Draw quick pictures. Break apart ones to make a ten. Then add and write the sum.

Question 1.
15 + 7 = _22__

Answer:
The number is 22.

Explanation:
In the above-given question,
given that,
15 + 7 = 22.
15 + 5 + 2.
20 + 2 = 22.
the number is 22.

Go Math 2nd Grade Chapter 4 Lesson 1 Answer Key Question 2.
26 + 5 = _31_

Answer:
The number is 31.

Explanation:
In the above-given question,
given that,
26 + 5 = 31.
26 + 3 + 2.
29 + 2 = 31.
the number is 31.

Question 3.
37 + 8 = _45_

Answer:
The number is 45.

Explanation:
In the above-given question,
given that,
37 + 8 = 45.
37 + 5 + 3.
42 + 3 = 45.
the number is 45.

Question 4.
28 + 6 = _35_

Answer:
The number is 35.

Explanation:
In the above-given question,
given that,
27 + 8 = 35.
27 + 3 + 5.
30 + 5 = 35.
the number is 35.

On Your Own

Break apart ones to make a ten. Then add and write the sum.

Question 5.
23 + 9 = _32_

Answer:
The number is 32.

Explanation:
In the above-given question,
given that,
23 + 9 = 32.
23 + 5 + 4.
28 + 4 = 32.
the number is 32.

Question 6.
48 + 5 = _53_

Answer:
The number is 53.

Explanation:
In the above-given question,
given that,
48 + 5 = 53.
48 + 3 + 2.
51 + 2 = 53.
the number is 53.

Go Math 2nd Grade Lesson 4 Problem Set 4.1 Answer Key Question 7.
18 + 5 = _23_

Answer:
The number is 23.

Explanation:
In the above-given question,
given that,
18 + 5 = 23.
18 + 3 + 2.
21 + 2 = 23.
the number is 23.

Question 8.
33 + 9 = _42_

Answer:
The number is 42.

Explanation:
In the above-given question,
given that,
33 + 9 = 42.
33 + 5 + 4.
38 + 4 = 42.
the number is 42.

Question 9.
27 + 6 = _33_

Answer:
The number is 33.

Explanation:
In the above-given question,
given that,
27 + 6 = 33.
27 + 3 + 3.
30 + 3 = 33.
the number is 33.

Question 10.
49 + 4 = _53_

Answer:
The number is 53.

Explanation:
In the above-given question,
given that,
49 + 4 = 53.
49 + 2 + 2.
51 + 2 = 53.
the number is 53.

Question 11.
GO DEEPER
Alex sets up 32 small tables and 9 large tables in a room. Then he sets up 5 more large tables along a wall. How many tables does Alex set up?
_46_ tables

Answer:
The number of tables = 46.

Explanation:
In the above-given question,
given that,
Alex sets up 32 small tables and 9 large tables in a room.
Then he sets up 5 more large tables along a wall.
32 + 9 + 5 = 46.
The number of tables = 46.

Question 12.
THINK SMARTER
Bruce sees 29 oak trees and 4 maple trees at the park. Then he sees double the number of pine trees as maple trees. How many trees does Bruce see?

__41_ trees

Answer:
The number of trees Bruce see = 41.

Explanation:
In the above-given question,
given that,
Bruce sees 29 oak trees and 4 maple trees at the park.
Then he sees double the number of pine trees as maple trees.
29 + 4 + 8 = 46.
The number of trees = 41.

Problem Solving • Applications

Solve. Write or draw to explain.

Question 13.
GO DEEPER Megan has 38 animal pictures, 5 people pictures, and 3 insect pictures. How many pictures does she have?

_46_ pictures

Answer:
The number of pictures = 46.

Explanation:
In the above-given question,
given that,
Megan has 38 animal pictures, 5 people pictures, and 3 insect pictures.
38 + 5 + 3 = 46.
The number of tables = 46.

Question 14.
MATHEMATICAL PRACTICES
Analyze Jamal has a box with 22 toy cars in it. He puts 9 more toy cars into the box. Then he takes 3 toy cars out of the box. How many toy cars are in the box now?

_22_ toy cars

Answer:
The number of toy cars in the box now = 28.

Explanation:
In the above-given question,
given that,
Jamal has a box with 22 toy cars in it.
He puts 9 more toy cars into the box.
Then he takes 3 toy cars out of the box.
22 + 9 – 3 = 28.
The number of cars in the box now = 28.

Question 15.
THINK SMARTER
Dan has 16 pencils. Quentin gives him 5 more pencils. Choose all the ways you can use to find how many pencils Dan has in all.

Answer:
The number of pencils Dan has in all = 21.

Explanation:
In the above-given question,
given that,
Dan has 16 pencils.
Quentin gives him 5 more pencils.
16 + 5 = 21.
16 + 4 + 1 = 21.
The number of pencils = 21.

TAKE HOME ACTIVITY
• Say a number from 0 to 9. Have your child name a number to add to yours to have a sum of 10.

Break Apart Ones to Add Homework & Practice 4.1

Break apart ones to make a ten. Then add and write the sum.

Question 1.
62 + 9 = _71_

Answer:
The number is 71.

Explanation:
In the above-given question,
given that,
62 + 9 = 71.
62 + 5 + 4.
67 + 4 = 71.
the number is 71.

Go Math Grade 2 Chapter 4 Lesson 1 Answer Key Question 2.
27 + 7 = _34_

Answer:
The number is 34.

Explanation:
In the above-given question,
given that,
27 + 7 = 34.
27 + 3 + 4.
30 + 4 = 34.
the number is 34.

Question 3.
28 + 5 = _33_

Answer:
The number is 33.

Explanation:
In the above-given question,
given that,
28 + 5 = 33.
28 + 2 + 3.
30 + 3 = 33.
the number is 33.

Quentin 4.
17 + 8 = _25_

Answer:
The number is 25.

Explanation:
In the above-given question,
given that,
17 + 8 = 25.
17 + 5 + 3.
22 + 3 = 25.
the number is 25.

Question 5.
57 + 6 = _63_

Answer:
The number is 63.

Explanation:
In the above-given question,
given that,
57 + 6 = 63.
57 + 3 + 3.
60 + 3 = 63.
the number is 63.

Question 6.
23 + 9 = _32_

Answer:
The number is 32.

Explanation:
In the above-given question,
given that,
23 + 9 = 32.
23 + 6 + 3.
29 + 3 = 32.
the number is 32.

Question 7.
39 + 7 = _46_

Answer:
The number is 46.

Explanation:
In the above-given question,
given that,
39 + 7 = 46.
39 + 4 + 3.
43 + 3 = 46.
the number is 46.

Question 8.
26 + 5 = _31_

Answer:
The number is 31.

Explanation:
In the above-given question,
given that,
26 + 5 = 31.
26 + 3 + 2.
29 + 2 = 31.
the number is 31.

Question 9.
13 + 18 = _31_

Answer:
The number is 31.

Explanation:
In the above-given question,
given that,
13 + 18 = 31.
13 + 10 + 8.
23 + 8 = 31.
the number is 31.

Question 10.
18 + 7 = _25_

Answer:
The number is 25.

Explanation:
In the above-given question,
given that,
18 + 7 = 25.
18 + 4 + 3.
22 + 3 = 25.
the number is 25.

Problem Solving

Solve. Write or draw to explain.

Question 11.
Jimmy had 18 toy airplanes. His mother bought him 7 more toy airplanes. How many toy airplanes does he have now?

_25_ toy airplanes

Answer:
The number of toy airplanes = 25.

Explanation:
In the above-given question,
given that,
Jimmy had 18 toy airplanes.
His mother bought him 7 more toy airplanes.
18 + 7 = 25.
The number of toy airplanes = 25.

Question 12.
WRITE Math
Explain how you would find the sum of 46 + 7.
_________46___+___3___________
___________53______________

Answer:
The sum is 53.

Explanation:
In the above-given question,
given that,
the numbers are 46 and 7.
46 + 7 = 53.

Lesson Check

Question 1.
What is the sum?
26 + 7 = _33_

Answer:
The sum is 33.

Explanation:
In the above-given question,
given that,
the numbers are 26 and 7.
26 + 7 = 33.

Question 2.
What is the sum?
15 + 8 = _23_

Answer:
The sum is 23.

Explanation:
In the above-given question,
given that,
the numbers are 15 and 8.
15 + 8 = 23.

Spiral Review

Question 3.
Hannah has 4 blue beads and 8 red beads. How many beads does Hannah have?
4 + 8 = _12_ beads

Answer:
The number of beads = 12.

Explanation:
In the above-given question,
given that,
Hannah has 4 blue beads and 8 red beads.
4 + 8 = 12.
The number of beads = 12.

Question 4.
Rick had 4 stickers. Then he earned 2 more. How many stickers does he have now?
4 + 2 = _6_ stickers

Answer:
The number of stickers = 6.

Explanation:
In the above-given question,
given that,
Rick had 4 stickers.
Then he earned 2 more.
4 + 2 = 6.
The number of stickers = 6.

Question 5.
What is the sum?
4 + 5 + 4 = _13_

Answer:
The sum is 13.

Explanation:
In the above-given question,
given that,
the numbers are 4, 5, and 4.
4 + 5 + 4 = 13.

Question 6.
Write 281 using hundreds, tens, and ones.
_2_ hundreds _8_ tens _1_ one

Answer:
There are 2 hundred, 8 tens and 1 ones.

Explanation:
In the above-given question,
the number is 281.
there are 2 hundred, 8 tens, and 1 ones.
200 + 80 + 1 = 281.

Lesson 4.2 Use Compensation

Essential Question
How can you make an addend a ten to help solve an addition problem?

Listen and Draw

Draw quick pictures to show the problems.

Math Talk
MATHEMATICAL PRACTICES

Analyze Describe how you found how many stickers Tyrone has.

Model and Draw

Take ones from an addend to make the other addend the next tens number.

Answer:
The number is 73.

Explanation:
In the above-given question,
given that,
25 + 48 = 73.
23 + 50 = 73.
the number is 73.

Share and Show MATH BOARD

Show how to make one addend the next tens number. Complete the new addition sentence

Question 1.
37 + 25 = ?

Answer:
The number is 62.

Explanation:
In the above-given question,
given that,
37 + 25 = 62.
40 + 22 = 62.
the number is 62.

Go Math Grade 2 Chapter 4 Lesson 4.2 Practice Algebra Answers Question 2.
27 + 46 = ?

Answer:
The number is 73.

Explanation:
In the above-given question,
given that,
27 + 46 = 73.
30 + 43 = 73.
the number is 73.

Question 3.
14 + 29 = ?

Answer:
The number is 43.

Explanation:
In the above-given question,
given that,
14 + 29 = 43.
15 + 28 = 43.
the number is 43.

On Your Own

Show how to make one addend the next tens number. Complete the new addition sentence.

Question 4.
18 + 13 = ?

Answer:
The number is 31.

Explanation:
In the above-given question,
given that,
18 + 13 = 31.
20 + 11 = 31.
the number is 31.

Question 5.
24 + 18 = ?

Answer:
The number is 42.

Explanation:
In the above-given question,
given that,
24 + 18 = 42.
25 + 17 = 42.
the number is 42.

Question 6.
GO DEEPER
Lee finds 44 shells. Wayne finds 39 shells. How many shells do they still need if they want 90 shells in all?
__7_ shells

Answer:
The number of shells they want more = 7.

Explanation:
In the above-given question,
given that,
Lee finds 44 shells. Wayne finds 39 shells.
If they want 90 shells.
90 – 44 + 39.
90 – 83 = 7.
The number of shells they want more = 7.

Question 7.
THINK SMARTER
Zach finds 38 sticks. Kelly finds 27 sticks. How many more sticks do the two children still need if they want 70 sticks in all?


__5_ more sticks

Answer:
The number of children still need = 5.

Explanation:
In the above-given question,
given that,
Zach finds 38 sticks. Kelly finds 27 sticks.
If they want 70 sticks.
70 – 38 + 27.
70 – 65 = 5.
The number of children still need = 5.

Problem Solving • Applications

Solve. Write or draw to explain.

Question 8.
MATHEMATICAL PRACTICE
Make Connections The chart shows the leaves that Philip collected. He wants a collection of 52 leaves, using only two colors. Which two colors of leaves should he use?

__27__ and _25___

Answer:
The two colors Philip collected a green and yellow = 52.

Explanation:
In the above-given question,
given that,
He wants a collection of 52 leaves using two colors.
green color and yellow color.
27 + 25 =  52.
The two colors Philip collected a green and yellow = 52.

Question 9.
THINK SMARTER
Ava has 39 sheets of white paper. She has 22 sheets of green paper. Draw a picture and write to explain how to find the number of sheets of paper Ava has.

Ava has _61_ sheets of paper.

Answer:
The number of paper Ava has = 61.

Explanation:
In the above-given question,
given that,
Ava has 39 sheets of white paper.
She has 22 sheets of green paper.
39 + 22 = 61.
The number of paper Ava has = 61.

TAKE HOME ACTIVITY
• Have your child choose one problem on this page and explain how to solve it in another way.

Use Compensation Homework & Practice 4.2

Show how to make one addend the next tens number. Complete the new addition sentence.

Question 1.
15 + 37 = ?

Answer:
The number is 52.

Explanation:
In the above-given question,
given that,
15 + 37 = 52.
12 + 40 = 52.
the number is 52.

Question 2.
22 + 49 = ?

Answer:
The number is 71.

Explanation:
In the above-given question,
given that,
22 + 49 = 71.
21 + 50 = 71.
the number is 71.

Question 3.
38 + 26 = ?

Answer:
The number is 64.

Explanation:
In the above-given question,
given that,
38 + 26 = 64.
35 + 29 = 64.
the number is 64.

Problem Solving

Solve. Write or draw to explain.

Question 4.
The oak tree at the school was 34 feet tall. Then it grew 18 feet taller. How tall is the oak tree now?
_52_ feet tall

Answer:
The length of the oak tree = 52.

Explanation:
In the above-given question,
given that,
The oak tree at the school was 34 feet tall.
Then it grew 18 feet taller.
34 + 18 = 52.
The Length of the oak tree = 52.

Question 5.
WRITE Math Explain why you would make one of the addends a tens number when solving an addition problem.
__________________________
__________________________

Lesson Check

Question 1.
What is the sum?
18 + 25 = _43_

Answer:
The sum is 43.

Explanation:
In the above-given question,
given that,
the numbers are 18 and 25.
18 + 25 = 43.

Question 2.
What is the sum?
27 + 24 = _51_

Answer:
The sum is 51.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 24.
27 + 24 = 51.

Spiral Review

Question 3.
Circle the even number

Answer:
The even number is 14.

Explanation:
In the above-given question,
given that,
the numbers are 27, 14, 11, and 5.
among all 14 is an even number.
the even number = 14.

Question 4.
Andrew sees 4 fish. Kim sees double that number of fish. How many fish does Kim see?
_8_ fish

Answer:
The number of fish Kim see = 8.

Explanation:
In the above-given question,
given that,
Andrew sees 4 fish.
Kim sees double that number of fish.
4 + 4 = 8.
The number of fish Kim see = 8.

Question 5.
Write is a related subtraction fact for 7 + 6 = 13.
_____13__-__6___=____7__________

Answer:
The related subtraction fact is 13 – 6 = 7.

Explanation:
In the above-given question,
given that,
The number is 7 + 6 = 13.
13 – 6 = 7.
the related subtraction fact is 13 – 6 = 7.

Question 6.
What is the sum?
2 + 8 = _10_

Answer:
The sum is 10.

Explanation:
In the above-given question,
given that,
the numbers are 2 and 8.
2 + 8 = 10.

Lesson 4.3 Break Apart Addends as Tens and Ones

Essential Question
How do you break apart addends to add tens and then add ones?

Listen and Draw

Write the number. Then write the number as tens plus ones.

Answer:
The number is 43.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
4 is in tens digit and 3 is in 1s digit.
40 + 3 = 43.
The number is 43.

Answer:
The number is 18.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
1 is in tens digit and 8 is in 1s digit.
10 + 8 = 18.
The number is 18.

Answer:
The number is 37.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
3 is in tens digit and 7 is in 1s digit.
30 + 7 = 37.
The number is 37.

Math Talk
MATHEMATICAL PRACTICES
What is the value of the 6 in the number 63? Explain how you know.

Answer:
The value of the 6 is tens digit.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
6 is in tens digit and 3 is in 1s digit.
60 + 3 = 63.
The number is 63.

Model and Draw

Break apart the addends into tens and ones.
Add the tens and add the ones.

Answer:
The number is 75.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 48.
27 = 20 + 7.
48 = 40 + 8.
20 + 40 = 60 .
7 + 8 = 15.
60 + 15 = 60 + 10 + 5.
70 + 5 = 75.
the number is 75.

Share and Show MATH BOARD

Question 1.

Answer:
The number is 89.

Explanation:
In the above-given question,
given that,
the numbers are 35 and 54.
35 = 30 + 5.
54 = 50 + 4.
30 + 50 = 80 .
5 + 4 = 9.
80 + 9 = 80 + 6 + 3.
86 + 3 = 89.
the number is 89.

Question 2.

Answer:
The number is 72.

Explanation:
In the above-given question,
given that,
the numbers are 43 and 29.
43 = 40 + 3.
29 = 20 + 9.
40 + 20 = 60 .
3 + 9 = 12.
60 + 12 = 60 + 10 + 2.
70 + 2 = 72.
the number is 72.

Go Math Grade 2 Chapter 4 Test Pdf Question 3.

Answer:
The number is 94.

Explanation:
In the above-given question,
given that,
the numbers are 56 and 38.
56 = 50 + 6.
38 = 30 + 8.
50 + 30 = 80 .
6 + 8 = 14.
80 + 14 = 80 + 10 + 4.
90 + 4 = 94.
the number is 94.

On Your Own

Question 4.

Answer:
The number is 37.

Explanation:
In the above-given question,
given that,
the numbers are 14 and 23.
14 = 10 + 4.
23 = 20 + 3.
10 + 20 = 30.
4 + 3 = 7.
30 + 7 = 30 + 5 + 2.
35 + 2 = 37.
the number is 37.

Question 5.

Answer:
The number is 82.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 45.
37 = 30 + 7.
45 = 40 + 5.
30 + 40 = 70 .
7 + 5 = 12.
70 + 12 = 70 + 10 + 2.
80 + 2 = 82.
the number is 82.

Question 6.
GO DEEPER
Chris read 15 pages of his book. Tony read 4 more pages than Chris. How many pages did Chris and Tony read?

_34_ pages

Answer:
The number of pages Chris and Tony read = 34.

Explanation:
In the above-given question,
given that,
Chris read 15 pages of his book.
Tony read 4 more pages than Chris.
15 + 19 = 34.
The number of pages Chris and Tony read = 34.

Question 7.
THINK SMARTER Julie read 18 pages of her book in the morning. She read the same number of pages in the afternoon. How many pages did she read?

_36_ pages

Answer:
The number of pages Julie read = 36.

Explanation:
In the above-given question,
given that,
Julie read 18 pages of her book in the morning.
She read the same number of pages in the afternoon.
18 + 18 = 36.
The number of pages Julie read = 36.

Problem Solving • Applications

Write or draw to explain.

Question 8.
MATHEMATICAL PRACTICE
Make Sense of Problems Len has 35 baseball cards. The rest of his cards are basketball cards. He has 58 cards in all. How many basketball cards does he have?

_23_ basketball cards

Answer:
The number of basketball cards have = 23.

Explanation:
In the above-given question,
given that,
Len has 35 baseball cards.
The rest of his cards are basketball cards.
58 – 35 = 23.
The number of basketball cards = 23.

Question 9.
MATHEMATICAL PRACTICE
Evaluate Tomás has 17 pencils. He buys 26 more pencils. How many pencils does Tomás have now?

_43_ pencils

Answer:
The number of pencils does Tomas have now = 43.

Explanation:
In the above-given question,
given that,
Tomas has 17 pencils.
He buys 26 more pencils.
26 + 17 = 43.
The number of pencils does Tomas have now = 43.

Question 10.
THINK SMARTER
Sasha used 38 red stickers and 22 blue stickers. Show how you can break apart the addends to find how many stickers Sasha used.

Answer:
The number of stickers Sasha used = 60.

Explanation:
In the above-given question,
given that,
the numbers are 38 and 22.
38 = 30 + 8.
22 = 20 + 2.
30 + 20 = 50 .
8 + 2 = 10.
50 + 10 = 60
the number is 60.

TAKE HOME ACTIVITY
• Write 32 + 48 on a sheet of paper. Have your child break apart the numbers and find the sum.

Answer:
The sum is 80.

Explanation:
In the above-given question,
given that,
the numbers are 32 and 48.
32 + 48 = 80.

Break Apart Addends as Tens and Ones Homework & Practice 4.3

Break apart the addends to find the sum.

Question 1.

Answer:
The number is 39.

Explanation:
In the above-given question,
given that,
the numbers are 18 and 21.
18 = 10 + 8.
21 = 20 + 1.
10 + 20 = 30.
8 + 1 = 9.
30 + 9 = 30 + 6 + 3.
36 + 3 = 39.
the number is 39.

Question 2.

Answer:
The number is 82.

Explanation:
In the above-given question,
given that,
the numbers are 33 and 49.
33 = 30 + 3.
49 = 40 + 9.
30 + 40 = 70 .
3 + 9 = 12.
70 + 12 = 70 + 10 + 2.
80 + 2 = 82.
the number is 82.

Problem Solving

Choose a way to solve. Write or draw to explain.

Question 3.
Christopher has 28 baseball cards. Justin has 18 baseball cards. How many baseball cards do they have together?
_46_ baseball cards

Answer:
The number of baseball cards have = 46.

Explanation:
In the above-given question,
given that,
Christopher has 28 baseball cards.
Justin has 18 baseball cards.
28 + 18 = 46.
The number of baseball cards = 46.

Question 4.
WRITE Math
Explain how to break apart the addends to find the sum of 25 + 16.
_______25__+___16________
_________41_________________

Answer:
The number is 41.

Explanation:
In the above-given question,
given that,
the numbers are 25 and 16.
25 = 20 + 5.
16 = 10 + 6.
20 + 10 = 30 .
5 + 6 = 11.
30 + 11 = 30 + 10 + 1.
40 + 1 = 41.
the number is 41.

Lesson Check

Question 1.
What is the sum?

Answer:
The sum is 39.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 12.
27 + 12 = 39.

Go Math Grade 2 Chapter 4 Answer Key Question 2.
What is the sum?

Answer:
The sum is 52.

Explanation:
In the above-given question,
given that,
the numbers are 17 and 35.
52 + 17 = 35.

Spiral Review

Question 3.
What is the value of the underlined digit?

Answer:
The value of the underlined digit is 5.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
2 is in tens digit and 5 is in 1s digit.
20 + 5 = 25.
The number is 25.

Question 4.
What number has the same value as 12 tens?

Answer:
The number is 120.

Explanation:
In the above-given question,
given that,
100 + 20 = 120.
20 + 100 = 120.
the number is 120.

Question 5.
Ally has 7 connecting cubes. Greg has 4 connecting cubes. How many connecting cubes do they have?
_11_ cubes

Answer:
The number of connecting cubes = 11.

Explanation:
In the above-given question,
given that,
Ally has 7 connecting cubes.
Greg has 4 connecting cubes.
7 + 4 = 11.
The number of connecting cubes = 11.

Question 6.
Juan painted a picture of a tree. First, he painted 15 leaves. Then he painted 23 more leaves. How many leaves did he paint?
_38_ leaves

Answer:
The number of leaves he paints = 38.

Explanation:
In the above-given question,
given that,
Juan painted a picture of a  tree.
First, he painted 15 leaves.
Then he painted 23 more leaves.
15 + 23 = 38.
The number of leaves he paints = 38.

Lesson 4.4 Model Regrouping for Addition

Essential Question
When do you regroup in addition?

Listen and Draw

Use to model the problem.
Draw quick pictures to show what you did.

Answer:
The number is 43.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
4 is in tens digit and 3 is in 1s digit.
40 + 3 = 43.
The number is 43.

Math Talk
MATHEMATICAL PRACTICES

Use Tools
Describe how you made a ten in your model.

Model and Draw

Add 37 and 25.

Answer:
The number is 62.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 25.
37 = 30 + 7.
25 = 20 + 5.
30 + 20 = 50 .
7 + 5 = 12.
50 + 12 = 50 + 10 + 2.
60 + 2 = 62.
the number is 62.

Share and Show

Draw to show the regrouping. Write how many tens and ones are in the sum. Write the sum.

Question 1.
Add 47 and 15

_6_ tens _2_ ones _62_

Answer:
The sum is 62.

Explanation:
In the above-given question,
given that,
the numbers are 47 and 15.
47 + 15 = 62.

Question 2.
Add 48 and 8.

_5_ tens _6_ ones _56_

Answer:
The sum is 56.

Explanation:
In the above-given question,
given that,
the numbers are 48 and 8.
48 + 8 = 56.

Question 3.
Add 26 and 38.

_6_ tens _4_ ones _64_

Answer:
The sum is 64.

Explanation:
In the above-given question,
given that,
the numbers are 26 and 38.
26 + 38 = 64.

On Your Own

Draw to show if you regroup. Write how many tens and ones are in the sum. Write the sum.

Question 4.
Add 79 and 6.

_8_ tens _5_ ones _85_

Answer:
The sum is 85.

Explanation:
In the above-given question,
given that,
the numbers are 79 and 6.
79 + 6 = 85.

Question 5.
Add 18 and 64

_8_ tens _2_ ones _82_

Answer:
The sum is 82.

Explanation:
In the above-given question,
given that,
the numbers are 18 and 64.
18 + 64 = 82.

Question 6.
Add 23 and 39.

_6_ tens _2_ ones _62_

Answer:
The sum is 62.

Explanation:
In the above-given question,
given that,
the numbers are 23 and 39.
23 + 39 = 62.

Question 7.
Add 54 and 25.

_8_ tens _9_ ones _89_

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 54 and 25.
54 + 25 = 89.

Question 8.
Add 33 and 7.

_4_ tens _0_ ones _40_

Answer:
The sum is 40.

Explanation:
In the above-given question,
given that,
the numbers are 33 and 7.
33 + 7 = 40.

Question 9.
Add 27 and 68.

_9_ tens _5_ ones _95_

Answer:
The sum is 95.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 68.
27 + 68 = 95.

Question 10.
THINK SMARTER
Kara has 25 toy animals and 12 books. Jorge has 8 more toy animals than Kara has. How many toy animals does Jorge have?


_33_ toy animals

Answer:
The number of toy animals Jorge have = 33.

Explanation:
In the above-given question,
given that,
Kara has 25 toy animals and 12 books.
Jorge has 8 more toy animals than Kara has.
25 + 8 = 33.
The number of toy animals Jorge have = 33.

Problem Solving • Applications

Write or draw to explain.

Question 11.
MATHEMATICAL PRACTICE
Make Sense of Problems Mrs. Sanders has two fish tanks. There are 14 fish in the small tank. There are 27 fish in the large tank. How many fish are in the two tanks?

_41_ fish

Answer:
The number of fish in the two tanks = 41.

Explanation:
In the above-given question,
given that,
Mrs. Sanders has two fish tanks.
There are 14 fish in the small tank.
There are 27 fish in the large tank.
14 + 27 = 41.
The number of fish in the tank = 41.

Question 12.
THINK SMARTER
Charlie climbed 69 steps. Then he climbed 18 more steps. Show two different ways to find how many steps Charlie climbed.

Charlie climbed _87_ steps.

Answer:
The number steps Charlie climbed = 87.

Explanation:
In the above-given question,
given that,
Charlie climbed 69 steps.
Then he climbed 18 more steps.
69 + 18 = 87.
The number of steps Charlie climbed = 87.

TAKE HOME ACTIVITY
• Ask your child to write a word problem with 2-digit numbers about adding two groups of stamps.

Model Regrouping for Addition Homework & Practice 4.4

Draw to show the regrouping. Write how many tens and ones in the sum. Write the sum.

Question 1.
Add 63 and 9.

_7_ tens _2_ ones _72_

Answer:
The sum is 72.

Explanation:
In the above-given question,
given that,
the numbers are 63 and 9.
63 + 9 = 72.

Question 2.
Add 25 and 58.

_8_ tens _3_ ones _83_

Answer:
The sum is 83.

Explanation:
In the above-given question,
given that,
the numbers are 25 and 58.
25 + 58 = 83.

Question 3.
Add 58 and 18

_7_ tens _6_ ones _76_

Answer:
The sum is 76.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 18.
58 + 18 = 76.

Question 4.
Add 64 and 26.

_9_ tens _0_ ones _90_

Answer:
The sum is 90.

Explanation:
In the above-given question,
given that,
the numbers are 64 and 26.
64 + 26 = 90.

Question 5.
Add 17 and 77.

_9_ tens _4_ ones _94_

Answer:
The sum is 94.

Explanation:
In the above-given question,
given that,
the numbers are 17 and 77.
17 + 77 = 94.

Question 6.
Add 16 and 39.

_5_ tens _5_ ones _55

Answer:
The sum is 55.

Explanation:
In the above-given question,
given that,
the numbers are 16 and 39.
16 + 39 = 55.

Problem Solving

Choose a way to solve. Write or draw to explain.

Question 7.
Cathy has 43 leaves in her collection. Jane has 38 leaves. How many leaves do the two children have?
_81_ leaves

Answer:
The number of leaves two children have = 81.

Explanation:
In the above-given question,
given that,
Cathy has 43 leaves in her collection.
Jane has 38 leaves .
43 + 38 = 87.
The number of leaves two children have = 81.

Question 8.
WRITE Math
Suppose you are adding 43 and 28. Will you regroup? Explain.
____________71______________

Answer:
The sum is 71.

Explanation:
In the above-given question,
given that,
the numbers are 43 and 28.
43 + 28 = 71.

Lesson Check

Question 1.
Add 27 and 48. What is the sum?

__75__

Answer:
The sum is 75.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 48.
27 + 48 = 75.

Spiral Review

Question 2.
What is the sum?
7 + 7 = _14_

Answer:
The sum is 14.

Explanation:
In the above-given question,
given that,
the numbers are 7 and 7.
7 + 7 = 14.

Question 3.
Circle the odd number

Answer:
The odd number is 21.

Explanation:
In the above-given question,
given that,
the numbers are 21, 6, 12, and 22.
among all 21 is an odd number.
the odd number = 21.

Question 4.
What is the sum?
39 + 46 = _85_

Answer:
The sum is 85.

Explanation:
In the above-given question,
given that,
the numbers are 39 and 46.
39 + 46 = 85.

Question 5.
What is the sum?
5 + 3 + 4 = _12_

Answer:
The sum is 12.

Explanation:
In the above-given question,
given that,
the numbers are 5, 3, and 4.
5 + 3 + 4 = 12.

Lesson 4.5 Model and Record 2-Digit Addition

Essential Question
How do you record 2-digit addition?

Listen and Draw

Use to model the problem. Draw quick pictures to show what you did.

Answer:
The number is 43.

Explanation:
In the above-given question,
given that,
the number is divided into two parts.
they are tens digit and ones digit.
4 is in tens digit and 3 is in 1s digit.
40 + 3 = 43.
The number is 43.

Math Talk
MATHEMATICAL PRACTICES

Make Connections Did you trade blocks in your model? Explain why or why not.

Model and Draw

Trace over the quick pictures in the steps.

Answer:
The sum is 63.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 26.
37 + 26 = 63.

Share and Show

Draw quick pictures to help you solve. Write the sum.

Question 1.

Answer:
The sum is 58.

Explanation:
In the above-given question,
given that,
the numbers are 26 and 32.
32 + 26 = 58.

Go Math Lesson 4.5 2nd Grade Question 2.

Answer:
The sum is 82.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 24.
58 + 24 = 82.

On Your Own

Draw quick pictures to help you solve. Write the sum.

Question 3.

Answer:
The sum is 43.

Explanation:
In the above-given question,
given that,
the numbers are 34 and 9.
34 + 9 = 43.

Question 4.

Answer:
The sum is 51.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 24.
27 + 24 = 51.

Question 5.

Answer:
The sum is 58.

Explanation:
In the above-given question,
given that,
the numbers are 35 and 23.
35 + 23 = 58.

Question 6.

Answer:
The sum is 65.

Explanation:
In the above-given question,
given that,
the numbers are 59 and 6.
59 + 6 = 65.

Question 7.
THINK SMARTER
Tim has 36 stickers.
Margo has 44 stickers. How many more stickers would they need to have 100 stickers altogether?

_20_ more stickers

Answer:
The number of stickers they need to have 100 = 20.

Explanation:
In the above-given question,
given that,
Margo has 44 stickers.
Tim has 36 stickers.
44 + 36 = 80.
100 – 80 = 20.
The number of stickers they need to have 100 = 20.

Question 8.
GO DEEPER
A baker wants to sell 100 muffins. So far the baker has sold 48 corn muffins and 42 bran muffins. How many more muffins does the baker need to sell?
_10_ more muffins

Answer:
The number of muffins baker need to sell = 10.

Explanation:
In the above-given question,
given that,
A baker wants to sell 100 muffins.
So far the baker has sold 48 corn muffins and 42 bran muffins.
100 – 90 = 10.
The number of muffins baker need to sell = 10.

Problem Solving • Applications

Write or draw to explain.

Question 9.
MATHEMATICAL PRACTICE
Make Sense of Problems Chris and Bianca got 80 points in all in the spelling contest. Each child got more than 20 points. How many points could each child have gotten?
Chris: _40_ points
Bianca: _40_ points

Answer:
The number of points each child have = 40.

Explanation:
In the above-given question,
given that,
Chris and Bianca got 80 points in all the spelling contest.
40 + 40 = 80.
The number of points each child have = 40.

Question 10.
THINK SMARTER
Don built a tower with 24 blocks. He built another tower with 18 blocks. How many blocks did Don use for both towers? Draw quick pictures to solve. Write the sum.

_24_ blocks
Did you regroup to find the answer? Explain.
_____20___+___4________________
_______10___+___10____+__4________
_______24____________________

Answer:
The sum is 42.

Explanation:
In the above-given question,
given that,
the numbers are 24 and 18.
24 + 18 = 42.

TAKE HOME ACTIVITY
• Write two 2-digit numbers and ask your child if he or she would regroup to find the sum.

Model and Record 2-Digit Addition Homework & Practice 4.5

Draw quick pictures to help you solve. Write the sum.

Question 1.

Answer:
The sum is 55.

Explanation:
In the above-given question,
given that,
the numbers are 38 and 17.
38 + 17 = 55.

Question 2.

Answer:
The sum is 84.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 26.
58 + 26 = 84.

Question 3.

Answer:
The sum is 79.

Explanation:
In the above-given question,
given that,
the numbers are 42 and 37.
42 + 37 = 79.

Question 4.

Answer:
The sum is 91.

Explanation:
In the above-given question,
given that,
the numbers are 53 and 38.
53 + 38 = 91.

Problem Solving

Choose a way to solve. Write or draw to explain.

Question 5.
There were 37 children at the park on Saturday and 25 children at the park on Sunday. How many children were at the park on those two days?
_62_ children

Answer:
The number of children were at the park = 62.

Explanation:
In the above-given question,
given that,
There were 37 children at the park on saturday and 25 children at the park on sunday.
25 + 37 = 62.
The number of children were at the park = 62.

Question 6.
WRITE Math
Explain why you should record a 1 in the Tens column when you regroup in an addition problem.
__________________________
__________________________

Lesson Check

Question 1.
What is the sum?

Answer:
The sum is 62.

Explanation:
In the above-given question,
given that,
the numbers are 34 and 28.
34 + 28 = 62.

Question 2.
What is the sum?

Answer:
The sum is 70.

Explanation:
In the above-given question,
given that,
the numbers are 43 and 27.
43 + 27 = 70.

Spiral Review

Question 3.
Adam collected 14 pennies in the first week and 9 pennies in the second week. How many more pennies did he collect in the first week than in the second week?
14 – 9 = _5_ pennies

Answer:
The number of pennies he collected more in first week = 5.

Explanation:
In the above-given question,
given that,
Adam collected 14 pennies in the first week and 9 pennies in the second week.
14 – 9 = 5.
The number of pennies he collected more in first week = 5.

Question 4.
What is the sum?
3 + 7 + 9 = _19_

Answer:
The sum is 19.

Explanation:
In the above-given question,
given that,
the numbers are 3, 7, and 9.
3 + 7 + 9 = 19.

Question 5.
Janet has 5 marbles. She finds double that number of marbles in her art box. How many marbles does Janet have now?
5 + _10_ = _15_ marbles

Answer:
The number of marbles does janet have = 15.

Explanation:
In the above-given question,
given that,
Janet has 5 marbles.
She finds double that number of marbles in her art box.
5 + 10 = 15.
The number of marbles does janet have = 15.

Question 6.
What is the difference?
13 – 5 = _8_

Answer:
The difference is 8.

Explanation:
In the above-given question,
given that,
the numbers are 13 and 5.
13 – 5 = 8.

Lesson 4.6 2-Digit Addition

Essential Question
How do you record the steps when adding 2-digit numbers?

Listen and Draw

Draw quick pictures to model each problem.

Answer:
The sum is 82.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 24.
58 + 24 = 82.

Answer:
The sum is 19.

Explanation:
In the above-given question,
given that,
the numbers are 3, 7, and 9.
3 + 7 + 9 = 19.

Math Talk
MATHEMATICAL PRACTICES

Analyze Relationships Explain when you need to regroup ones.

Model and Draw

Add 59 and 24.

Answer:
The sum is 83.

Explanation:
In the above-given question,
given that,
the numbers are 59 and 24.
59 + 24 = 83.

Share and Show MATH BOARD

Regroup if you need to. Write the sum.

Question 1.

Answer:
The sum is 71.

Explanation:
In the above-given question,
given that,
the numbers are 42 and 29.
42 + 29 = 71.

Question 2.

Answer:
The sum is 45.

Explanation:
In the above-given question,
given that,
the numbers are 31 and 14.
31 + 14 = 45.

Question 3.

Answer:
The sum is 72.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 45.
27 + 45 = 72.

On Your Own

Regroup if you need to. Write the sum.

Question 4.

Answer:
The sum is 55.

Explanation:
In the above-given question,
given that,
the numbers are 48 and 7.
48 + 7 = 55.

Question 5.

Answer:
The sum is 77.

Explanation:
In the above-given question,
given that,
the numbers are 35 and 42.
35 + 42 = 77.

Question 6.

Answer:
The sum is 93.

Explanation:
In the above-given question,
given that,
the numbers are 73 and 20.
73 + 20 = 93.

Question 7.

Answer:
The sum is 60.

Explanation:
In the above-given question,
given that,
the numbers are 33 and 27.
33 + 27 = 60.

Question 8.

Answer:
The sum is 57.

Explanation:
In the above-given question,
given that,
the numbers are 52 and 5.
52 + 5 = 57.

Question 9.

Answer:
The sum is 94.

Explanation:
In the above-given question,
given that,
the numbers are 36 and 58.
36 + 58 = 94.

Question 10.

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 64 and 25.
64 + 25 = 89.

Question 11.

Answer:
The sum is 73.

Explanation:
In the above-given question,
given that,
the numbers are 35 and 38.
35 + 38 = 73.

Question 12.

Answer:
The sum is 90.

Explanation:
In the above-given question,
given that,
the numbers are 38 and 52.
38 + 52 = 90.

Solve. Write or draw to explain.

Question 13.
THINK SMARTER Jin has 31 books about cats and 19 books about dogs. He gives 5 books to his sister. How many books does Jin have now?
_45_ books

Answer:
The number of books Jin have now = 45.

Explanation:
In the above-given question,
given that,
Jin has 31 books about cats and 19 books about dogs.
He gives 5 books to his sister.
31 + 19 – 5 = 45
The number of books Jin have = 45.

Problem Solving • Applications

Question 14.
GO DEEPER
Abby used a different way to add. Find the sum using Abby’s way.

Answer:
The sum is 86.

Explanation:
In the above-given question,
given that,
the numbers are 57 and 29.
57 + 29 = 86.

Question 15.
MATHEMATICAL PRACTICE
Verify the Reasoning of Others
Describe Abby’s way of adding 2-digit numbers.
__________________________
__________________________
__________________________

Question 16.
THINK SMARTER
Melissa saw 14 sea lions and 29 seals. How many animals did she see? Write a number sentence to find the total number of animals that she saw.
_________43_________________
Explain how the number sentence shows the problem.
______14__+___29_______________
__________43________________

Answer:
The number of animals that she saw = 43.

Explanation:
In the above-given question,
given that,
Melissa saw 14 sea lions and 29 seals.
14 + 29 = 15.
The number of marbles does janet have = 15.

TAKE HOME ACTIVITY
• Ask your child to show you two ways to add 45 and 38.

2-Digit Addition Homework & Practice 4.6

Regroup if you need to. Write the sum.

Question 1.

Answer:
The sum is 72.

Explanation:
In the above-given question,
given that,
the numbers are 47 and 25.
47 + 25 = 72.

Question 2.

Answer:
The sum is 51.

Explanation:
In the above-given question,
given that,
the numbers are 33 and 18.
33 + 18 = 51.

Question 3.

Answer:
The sum is 92.

Explanation:
In the above-given question,
given that,
the numbers are 28 and 64.
28 + 64 = 92.

Question 4.

Answer:
The sum is 78.

Explanation:
In the above-given question,
given that,
the numbers are 13 and 65.
13 + 65 = 78.

Question 5.

Answer:
The sum is 43.

Explanation:
In the above-given question,
given that,
the numbers are 17 and 26.
17 + 26 = 43.

Question 6.

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 36 and 53.
36 + 53 = 89.

Question 7.

Answer:
The sum is 83.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 25.
58 + 25 = 83.

Question 8.

Answer:
The sum is 86.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 49.
37 + 49 = 86.

Problem Solving

Solve. Write or draw to explain.

Question 9.
Angela drew 16 flowers on her paper in the morning. She drew 25 more flowers in the afternoon. How many flowers did she draw?
_41_ flowers

Answer:
The number of flowers did she draw = 41.

Explanation:
In the above-given question,
given that,
Angela drew 16 flowers on her paper in the morning.
She drew 25 more flowers in the afternoon.
16 + 25 = 41.
the number of flowers she drew = 41.
Question 10.
WRITE Math
How is Exercise 5 different from Exercise 6? Explain.
__________________________________
__________________________________

Lesson Check

Question 1.
What is the sum?

Answer:
The sum is 58.

Explanation:
In the above-given question,
given that,
the numbers are 21 and 37.
21 + 37 = 58.

Question 2.
What is the sum?

Answer:
The sum is 90.

Explanation:
In the above-given question,
given that,
the numbers are 38 and 52.
38 + 52 = 90.

Spiral Review

Question 3.
What is the next number in the counting pattern?
103, 203, 303, 403, _503_

Answer:
The number is 503.

Explanation:
In the above-given question,
given that,
the numbers are 103, 203, 303, 403.
the numbers are adding by 100.
the number is 503.

Question 4.
Rita counted 13 bubbles. Ben counted 5 bubbles. How many fewer bubbles did Ben count than Rita?
13 – 5 = _8_ bubbles

Answer:
The number of fewer bubbles count than Rita = 8.

Explanation:
In the above-given question,
given that,
Rita counted 13 bubbles.
Ben counted 5 bubbles.
13 – 5 = 8.
the number  of fewer bubbles count than Rita = 8.

Question 5.
Which number is 100 more than 265?
_365__

Answer:
The number is 365.

Explanation:
In the above-given question,
given that,
the number is 100 more than 265.
265 + 100 = 365.
the number is 365.

Question 6.
Write 42 as a sum of tens and ones.
_40_ + _2_

Answer:
The number is 42.

Explanation:
In the above-given question,
given that,
4 tens and 2 ones.
40 + 2 = 42.

Lesson 4.7 Practice 2-Digit Addition

Essential Question
How do you record the steps when adding 2-digit numbers?

Listen and Draw

Choose one way to solve the problem. Draw or write to show what you did.

Answer:
The sum is 82.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 24.
58 + 24 = 82.

Math Talk

MATHEMATICAL PRACTICES
Explain why you chose your way of solving the problem.

Share and Show MATH BOARD

Write the sum.

Question 1.

Answer:
The sum is 132.

Explanation:
In the above-given question,
given that,
the numbers are 38 and 94.
38 + 94 = 132.

Question 2.

Answer:
The sum is 97.

Explanation:
In the above-given question,
given that,
the numbers are 45 and 52.
45 + 52 = 97.

Question 3.

Answer:
The sum is 159.

Explanation:
In the above-given question,
given that,
the numbers are 83 and 76.
83 + 76 = 159.

Go Math 2nd Grade Chapter 4 Lesson 4.7 Question 4.

Answer:
The sum is 91.

Explanation:
In the above-given question,
given that,
the numbers are 56 and 35.
56 + 35 = 91.

Question 5.

Answer:
The sum is 114.

Explanation:
In the above-given question,
given that,
the numbers are 63 and 51.
63 + 51 = 114.

Question 6.

Answer:
The sum is 123.

Explanation:
In the above-given question,
given that,
the numbers are 74 and 49.
74 + 49 = 123.

On Your Own

Write the sum.

Question 7.

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 52 and 37
52 + 37 = 89.

Question 8.

Answer:
The sum is 109.

Explanation:
In the above-given question,
given that,
the numbers are 88 and 21.
88 + 21 = 109.

Question 9.

Answer:
The sum is 141.

Explanation:
In the above-given question,
given that,
the numbers are 74 and 67.
74 + 67 = 141.

Question 10.

Answer:
The sum is 147.

Explanation:
In the above-given question,
given that,
the numbers are 93 and 54.
93 + 54 = 147.

Question 11.

Answer:
The sum is 170.

Explanation:
In the above-given question,
given that,
the numbers are 92 and 78.
92 + 78 = 170.

Question 12.

Answer:
The sum is 72.

Explanation:
In the above-given question,
given that,
the numbers are 56 and 16.
56 + 16 = 72.

Question 13.

Answer:
The sum is 76.

Explanation:
In the above-given question,
given that,
the numbers are 31 and 45.
31+ 45 = 76.

Question 14.

Answer:
The sum is 115.

Explanation:
In the above-given question,
given that,
the numbers are 43 and 72.
43 + 72 = 115.

Question 15.
THINK SMARTER
Without finding the sums, circle the pairs of addends for which the sum will be greater than 100. Explain how you decided which pairs to circle.

__________________________
__________________________
__________________________
__________________________

Answer:
The sum is 109.

Explanation:
In the above-given question,
given that,
the numbers are 47 and 62.
47 + 62 = 109.

TAKE HOME ACTIVITY
• Tell your child two 2-digit numbers. Have him or her write the numbers and find the sum.

Practice 2-Digit Addition Homework & Practice 4.7

Write the sum.

Question 1.

Answer:
The sum is 75.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 17.
58 + 17 = 75.

Question 2.

Answer:
The sum is 130.

Explanation:
In the above-given question,
given that,
the numbers are 44 and 86.
44 + 86 = 130.

Question 3.

Answer:
The sum is 49.

Explanation:
In the above-given question,
given that,
the numbers are 36 and 13.
36 + 13 = 49.

Question 4.

Answer:
The sum is 121.

Explanation:
In the above-given question,
given that,
the numbers are 49 and 72.
49 + 72 = 121.

Question 5.

Answer:
The sum is 145.

Explanation:
In the above-given question,
given that,
the numbers are 58 and 87.
58 + 87 = 145.

Question 6.

Answer:
The sum is 91.

Explanation:
In the above-given question,
given that,
the numbers are 32 and 59.
32 + 59 = 91.

Problem Solving

Solve. Write or draw to explain.

Question 7.
There are 45 books on the shelf. There are 37 books on the table. How many books are on the shelf and the table?
_82_ books

Answer:
The number of books on the shelf and the table = 82.

Explanation:
In the above-given question,
given that,
There are 45 books on the shelf.
There are 37 books on the table.
45 + 37 = 82.
the number of books on the shelf and the table  = 82.

Question 8.
WRITE Math
Describe how you regroup when you find the sum of 64 + 43.
________64__+__43______________
_________103_________________

Answer:
The sum is 103.

Explanation:
In the above-given question,
given that,
the numbers are 64 and 43.
64 + 43 = 103.

Lesson Check

Question 1.
What is the sum?

Answer:
The sum is 91

Explanation:
In the above-given question,
given that,
the numbers are 56 and 35.
56 + 35 = 91.

Question 2.
What is the sum?

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 74 and 15.
74 + 15 = 89.

Spiral Review

Question 3.
What is the value of the underlined digit?

Answer:
The value of the underlined digit is 500.

Explanation:
In the above-given question,
given that,
the number is divided into 3 parts.
they are hundreds, tens digit and ones digit.
5 is in hundreds digit, 2 is in tens digit and 5 is in 1s digit.
500 + 20 + 6 = 526.
The number is 526.

Question 4.
Mr. Stevens wants to put 17 books on the shelf. He put 8 books on the shelf. How many more books does he need to put on the shelf?
17 − 8 = _9_ books

Answer:
The number of books he needs to put on the shelf = 9.

Explanation:
In the above-given question,
given that,
Mr. Stevens wants to put 17 books on the shelf.
He put 8 books on the shelf.
17 – 8 = 9.
the number of books he needs to put on the shelf = 9.

Question 5.
What is the difference?
11 – 6 = _5_

Answer:
The difference is 5.

Explanation:
In the above-given question,
given that,
the numbers are 11 and 6.
11 – 6 = 5.

Question 6.
Write 83 as a sum of tens and ones
_80_ + _3_

Answer:
The number 8 is in the tens place and 3 is in ones place.
80 + 3 = 83.

Explanation:
In the above-given question,
given that,
the number is 83.
80 + 3 = 83.
2-Digit Addition Mid-Chapter Checkpoint

Concepts and Skills

Break apart ones to make a ten. Then add and write the sum.

Question 1.
37 + 8 = _45__

Answer:
The number is 45.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 8.
37 = 30 + 7.
8 = 5 + 3.
30 + 7 = 37.
5 + 3 = 8.
37 + 8 = 37 + 5 + 3.
42 + 3 = 45.
the number is 45.

Question 2.
55 + 7 = _62__

Answer:
The number is 62.

Explanation:
In the above-given question,
given that,
the numbers are 55 and 7.
55 = 50 + 5.
7 = 5 + 2.
50 + 5 = 55 .
5 + 2 = 7.
55 + 7 = 55 + 5 + 2.
60 + 2 = 62.
the number is 62.

Break apart the addends to find the sum.

Question 3.

Answer:
The number is 63.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 36.
27 = 20 + 7.
36 = 30 + 6.
30 + 20 = 50 .
7 + 6 = 13.
50 + 13 = 50 + 10 + 3.
60 + 3 = 63.
the number is 63.

Write the sum.

Question 4.

Answer:
The sum is 85.

Explanation:
In the above-given question,
given that,
the numbers are 28 and 57.
28 + 57 = 85.

Question 5.

Answer:
The sum is 98.

Explanation:
In the above-given question,
given that,
the numbers are 67 and 31.
67 + 31 = 98.

Question 6.

Answer:
The sum is 90.

Explanation:
In the above-given question,
given that,
the numbers are 71 and 19.
71 + 19 = 90.

Question 7.
THINK SMARTER
Julia collected 25 cans to recycle. Dan collected 14 cans. How many cans did they collect?
_39_ cans

Answer:
The number of cans did they collect = 39.

Explanation:
In the above-given question,
given that,
Julia collected 25 cans to recycle.
Dan collected 14 cans.
25 + 14 = 39.
the number of cans did they collect = 39.

Lesson 4.8 Rewrite 2-Digit Addition

Essential Question
What are two different ways to write addition problems?

Listen and Draw

Write the numbers for each addition problem.

Answer:
The sum is 85.

Explanation:
In the above-given question,
given that,
the numbers are 28 and 57.
28 + 57 = 85.

Answer:
The sum is 98.

Explanation:
In the above-given question,
given that,
the numbers are 67 and 31.
67 + 31 = 98.

Answer:
The sum is 90.

Explanation:
In the above-given question,
given that,
the numbers are 71 and 19.
71 + 19 = 90.

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 74 and 15.
74 + 15 = 89.

Math Talk
MATHEMATICAL PRACTICES
Look for Structure Explain why it is important to line up the digits of these addends in columns.

Model and Draw

Add. 28 + 45 = ?
Step 1 For 28, write the tens digit in the tens column. Write the ones digit in the ones column.
Repeat for 45

Step 2 Add the ones. Regroup if you need to. Add the tens.

Share and Show

Rewrite the addition problem. Then add.

Question 1.

Answer:
The sum is 33.

Explanation:
In the above-given question,
given that,
the numbers are 25 and 8.
25 + 8 = 33.

Question 2.

Answer:
The sum is 47.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 10.
37 + 10 = 47.

Question 3.

Answer:
The sum is 70.

Explanation:
In the above-given question,
given that,
the numbers are 25 and 45.
25 + 45 = 70.

Question 4.

Answer:
The sum is 67.

Explanation:
In the above-given question,
given that,
the numbers are 38 and 29.
38 + 29 = 67.

Question 5.

Answer:
The sum is 65.

Explanation:
In the above-given question,
given that,
the numbers are 20 and 45.
20 + 45 = 65.

Question 6.

Answer:
The sum is 72.

Explanation:
In the above-given question,
given that,
the numbers are 63 and 9.
63 + 9 = 72.

Question 7.

Answer:
The sum is 51.

Explanation:
In the above-given question,
given that,
the numbers are 36 and 15.
36 + 15 = 51.

Question 8.

Answer:
The sum is 92.

Explanation:
In the above-given question,
given that,
the numbers are 74 and 18.
74 + 18 = 92.

On Your Own

Rewrite the addition problem. Then add.

Question 9.

Answer:
The sum is 81.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 54.
27 + 54 = 81.

Question 10.

Answer:
The sum is 64.

Explanation:
In the above-given question,
given that,
the numbers are 34 and 30.
34 + 30 = 64.

Question 11.

Answer:
The sum is 43.

Explanation:
In the above-given question,
given that,
the numbers are 26 and 17.
26 + 17 = 43.

Question 12.

Answer:
The sum is 86.

Explanation:
In the above-given question,
given that,
the numbers are 48 and 38.
48 + 38 = 86.

Question 13.

Answer:
The sum is 82.

Explanation:
In the above-given question,
given that,
the numbers are 50 and 32.
50 + 32 = 82.

Question 14.

Answer:
The sum is 99.

Explanation:
In the above-given question,
given that,
the numbers are 61 and 38.
61 + 38 = 99.

Question 15.

Answer:
The sum is 80.

Explanation:
In the above-given question,
given that,
the numbers are 37 and 43.
37 + 43 = 80.

Question 16.

Answer:
The sum is 96.

Explanation:
In the above-given question,
given that,
the numbers are 79 and 17.
79 + 17 = 96.

Question 17.

Answer:
The sum is 85.

Explanation:
In the above-given question,
given that,
the numbers are 45 and 40.
45 + 40 = 85.

Question 18.

Answer:
The sum is 73.

Explanation:
In the above-given question,
given that,
the numbers are 21 and 52.
21 + 52 = 73.

Question 19.

Answer:
The sum is 93.

Explanation:
In the above-given question,
given that,
the numbers are 17 and 76.
17 + 7 = 93.

Question 20.

Answer:
The sum is 97.

Explanation:
In the above-given question,
given that,
the numbers are 68 and 29.
68 + 29 = 97.

Question 21.
THINK SMARTER
For which of the problems above could you find the sum without rewriting it? Explain.

__________________________________
__________________________________
__________________________________

Problem Solving • Applications

Use the table. Write or draw to show how you solved the problem.

Question 22.
MATHEMATICAL PRACTICE
Analyze Relationships Which two players scored 56 points in all? Add to check your answer.
_Lou_ and _Kevin_

Answer:
The two players who scored 56 points in all = Lou and Kevin.

Explanation:
In the above-given question,
given that,
Lou scored this season = 37.
Kevin scored this season = 19.
37 + 19 = 56.
the two players who scored 56 points in all = Lou and Kevin.
Question 23.
THINK SMARTER
Shawn says he can find the sum of 20 + 63 without rewriting it. Explain how to find the sum using mental math.
______10___+ __10_______________
_____60___+__3________________
______20____+____63____________
________83__________________

Answer:
The sum is 83.

Explanation:
In the above-given question,
given that,
the numbers are 20 and 63.
20 + 63 = 83.

TAKE HOME ACTIVITY
• Have your child write and solve another problem, using the table above.

Rewrite 2-Digit Addition Homework & Practice 4.8

Rewrite the numbers. Then add.

Question 1.

Answer:
The sum is 46.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 19.
27 + 19 = 46.

Question 2.

Answer:
The sum is 59.

Explanation:
In the above-given question,
given that,
the numbers are 36 and 23.
36 + 23 = 59.

Question 3.

Answer:
The sum is 60.

Explanation:
In the above-given question,
given that,
the numbers are 31 and 29.
31 + 29 = 60.

Question 4.

Answer:
The sum is 71.

Explanation:
In the above-given question,
given that,
the numbers are 48 and 23.
48 + 23 = 71.

Question 5.

Answer:
The sum is 65.

Explanation:
In the above-given question,
given that,
the numbers are 53 and 12.
53 + 12 = 65.

Question 6.

Answer:
The sum is 82.

Explanation:
In the above-given question,
given that,
the numbers are 69 and 13.
69 + 13 = 82.

Question 7.

Answer:
The sum is 62.

Explanation:
In the above-given question,
given that,
the numbers are 24 and 38.
24 + 38 = 62.

Question 8.

Answer:
The sum is 83.

Explanation:
In the above-given question,
given that,
the numbers are 46 and 37.
46 + 37 = 83.

Problem Solving

Use the table. Show how you solved the problem.

Question 9.
How many pages did Sasha and Kara read together?
_91_ pages

Answer:
The number of pages Sasha and Kara read together = 91.

Explanation:
In the above-given question,
given that,
Sasha read 62 pages.
Kara read 29 pages.
62 + 29 = 91.
the number of pages Sasha and Kara read together = 91.

Question 10.
WRITE Math
Explain what can happen if you line up the digits incorrectly when you rewrite addition problems.
__________________________
__________________________
__________________________

Answer: If we line up the digits incorrectly when we rewrite additional problem, we can get wrong answer.

Lesson Check

Question 1.
What is the sum of 39 + 17?

Answer:
The sum is 56.

Explanation:
In the above-given question,
given that,
the numbers are 39 and 17.
39 + 17 = 56.

Question 2.
What is the sum of 28 + 16?

Answer:
The sum is 44.

Explanation:
In the above-given question,
given that,
the numbers are 28 and 16.
28 + 16 = 44.

Spiral Review

Question 3.
What number is another way to write 60 + 4?
____64_____

Answer:
The number is 64.

Explanation:
In the above-given question,
given that,
the numbers are 60 and 4.
60 + 4 = 64

Question 4.
The classroom has 4 desks in each row. There are 5 rows. How many desks are there in the classroom?
_20_ desks

Answer:
The number of desks are there in the classroom = 20.

Explanation:
In the above-given question,
given that,
The classroom has 4 desks in each row.
There are 5 rows.
4 + 4 + 4 + 4 + 4 = 20.
the number of desks are there in the classroom = 20.
Question 5.
A squirrel collected 17 acorns. Then the squirrel collected 31 acorns. How many acorns did the squirrel collect?
_48_ acorns

Answer:
The number of acorns did the squirrel collect = 48.

Explanation:
In the above-given question,
given that,
A squirrel collected 17 acorns.
Then the squirrel collected 31 acorns.
17 + 31 = 48.
The number of acorns did the squirrel collect = 48.
Question 6.
What number can be written as 3 hundreds 7 tens 5 ones?
_375__

Answer:
The number is 375.

Explanation:
In the above-given question,
given that,
the numbers are 300, 70 and 5.
300 + 70 + 5 = 375.
The number can be written as 3 hundred 7 tens and 5 ones.

Lesson 4.9 Problem Solving • Addition

Essential Question
How can drawing a diagram help when solving addition problems?

Kendra had 13 crayons. Her dad gave her some more crayons. Then she had 19 crayons. How many crayons did Kendra’s dad give her?

Answer:
The number of crayons did Kendra’s dad give = 6.

Explanation:
In the above-given question,
given that,
Kendra had 13 crayons.
Her dad gave her some more crayons.
Then she had 19 crayons.
19 – 13 = 6.
the number of crayons did Kendra’s dad give = 6.

Question 6.
What number can be written as 3 hundreds 7 tens 5 ones?

Answer:
The number is 375.

Explanation:
In the above-given question,
given that,
the numbers are 300, 70 and 5.
300 + 70 + 5 = 375.
The number can be written as 3 hundred 7 tens and 5 ones.

Unlock the Problem

What do I need to find?

Kendra’s dad gave her

What information do I need to use?

She had __ crayons. After he gave her some more crayons, she had __ crayons.

Show how to solve the problem.

Answer:
The number of crayons did Kendra’s dad give = 6.

Explanation:
In the above-given question,
given that,
Kendra had 13 crayons.
Her dad gave her some more crayons.
Then she had 19 crayons.
13 + 6 = 19.
the number of crayons did Kendra’s dad give = 6.

HOME CONNECTION
• Your child used a bar model and a number sentence to represent the problem. These help show what the missing amount is in order to solve the problem.

Try Another Problem

Label the bar model. Write a number sentence with a for the missing number. Solve.

Question 1.
Mr. Kane has 24 red pens. He buys 19 blue pens. How many pens does he have now?

Answer:
The number of pens does he have now = 43.

Explanation:
In the above-given question,
given that,
Mr. Kane has 24 red pens. He buys 19 blue pens.
24 + 19 = 43.
the number of pens does he have now = 43.

Question 2.
Hannah has 10 pencils. Jim and Hannah have 17 pencils altogether. How many pencils does Jim have?

Answer:
The number of pencils does Jim have = 7.

Explanation:
In the above-given question,
given that,
Hannah has 10 pencils.
Jim and Hannah have 17 pens together.
17 – 10 = 7.
the number of pencils does Jim have = 7.

Math Talk
MATHEMATICAL PRACTICES
Explain how you know if an amount is a part or the whole in a problem.

Share and Show MATH BOARD

Label the bar model. Write a number sentence with a for the missing number. Solve.

Question 3.
Aimee and Matthew catch 17 crickets in all. Aimee catches 9 crickets. How many crickets does Matthew catch?
__ crickets

__________________________

Answer:
The number of crickets does Matthew catch = 8.

Explanation:
In the above-given question,
given that,
Aimee and Matthew catch 17 crickets in all.
Aimee catches 9 crickets.
17 – 9 = 8.
the number of crickets does Matthew catch = 8.

Question 4.
Percy counts 16 grasshoppers at the park. He counts 15 grasshoppers at home. How many grasshoppers does Percy count?

_31_ grasshoppers

Answer:
The number of grasshoppers does percy count = 31.

Explanation:
In the above-given question,
given that,
Percy counts 16 grasshoppers at the park.
He counts 15 grasshoppers at home.
16 + 15 = 31.
the number of grasshoppers does percy count = 31.

Question 5.
There are three groups of owls. There are 17 owls in each of the first two groups. There are 47 owls in all. How many owls are in the third group?

Answer:
The number of owls in the third group = 30.

Explanation:
In the above-given question,
given that,
There are three groups of owls.
There are 17 owls in each of the first two groups.
There are 47 owls in all.
47 – 17 = 30.
the number of owls in the third group = 30.

On Your Own WRITE Math

Write or draw to explain.

Question 6.
There are 37 paper clips in the box and 24 paper clips on the table. How many paper clips are there in all?

_61_ paper clips

Answer:
The number of paper clips are there in all = 61.

Explanation:
In the above-given question,
given that,
There are 37 paper clips in the box and 24 paper clips on the table.
37 + 24 = 61.
the number of paper clips are there in all = 61.

Question 7.
MATHEMATICAL PRACTICE
Make Sense of Problems Jeff has 19 postcards and 2 pens. He buys 20 more postcards. How many postcards does he have now?

_39_ postcards

Answer:
The number of postcards he have now = 39.

Explanation:
In the above-given question,
given that,
Jeff has 19 postcards and 2 pens.
He buys 20 more postcards.
19 + 20 = 39.
the number of postcards he have now = 39.

Question 8.
GO DEEPER
There are a total of 41 chickens on the farm. There are 13 chickens in each of the 2 cages in the barn. The rest of the chickens are outside. How many chickens are outside?
_15_ chickens

Answer:
The number of chickens are outside = 15.

Explanation:
In the above-given question,
given that,
There are a total of 41 chickens on the farm.
There are 13 chickens in each of the 2 cages in the barn.
26 – 41 = 15.
The number of chicken are outside = 15.
Question 9.
THINK SMARTER
There are 23 books in a box. There are 29 books on a shelf. How many books are there?
_52_ books

Answer:
The number of books = 52.

Explanation:
In the above-given question,
given that,
There are 23 books in a box.
There are 29 books on a shelf.
23 + 29 = 52.
the number of books = 52.

TAKE HOME ACTIVITY
• Ask your child to explain how to solve one of the problems above.

Problem Solving • Addition Homework & Practice 4.9

Label the bar model. Write a number sentence with a for the missing number. Solve.

Question 1.
Jacob counts 37 ants on the sidewalk and 11 ants on the grass. How many ants does Jacob count?

Answer:
The number of ants Jacob count = 48.

Explanation:
In the above-given question,
given that,
Jacob counts 37 ants on the sidewalk and 11 ants on the grass.
37 + 11 = 48.
the number of ants Jacob count = 48.

Question 2.
There are 14 bees in the hive and 17 bees in the garden. How many bees are there?

Answer:
The number of bees are there = 31.

Explanation:
In the above-given question,
given that,
There are 14 bees in the hive and 17 bees in the garden.
14 + 17 = 31.
the number of bees are there = 31.

Question 3.
WRITE Math
Describe how you labeled the bar model and wrote a number sentence to solve Exercise 2.
__________________________________
__________________________________
__________________________________
__________________________________
__________________________________
__________________________________

Answer: First of all I wrote 14 in the first box which represents the number of bees in the hive. Secondly, I wrote 17 in the second box which represents the number of bees in the garden

Lesson Check

Question 1.
Sean and Abby have 23 markers altogether. Abby has 14 markers. How many markers does Sean have?

Answer:
The number of markers does Sean have = 9.

Explanation:
In the above-given question,
given that,
Sean and Abby have 23 markers altogether.
Abby has 14 markers.
23 – 14 = 9.
the number of markers does Sean have = 9.

Question 2.
Mrs. James has 22 students in her class. Mr. Williams has 24 students in his class. How many students are in the two classes?

Answer:
The number of students in two calsses = 66.

Explanation:
In the above-given question,
given that,
Mrs. James has 22 students in her class.
Mr. Williams has 24 students in his class.
22 + 44 = 66.
the number of students in two classes = 66.

Spiral Review

Question 3.
What is the difference?
15 – 9 = _6__

Answer:
The difference is 6.

Explanation:
In the above-given question,
given that,
the numbers are 15 and 9.
15 – 9 = 6.

Question 4.
What is the sum?
7 + 5 = __12_

Answer:
The sum is 12.

Explanation:
In the above-given question,
given that,
the numbers are 7 and 5.
7 + 5 = 12.

Question 5.
Jan has 14 blocks. She gives 9 blocks to Tim. How many blocks does Jan have now?
14 – 9 = _5_ blocks

Answer:
The number of blocks does Jan have = 5.

Explanation:
In the above-given question,
given that,
Jan has 14 blocks.
She gives 9 blocks to Tim.
14 – 9 = 5.
the number of blocks does Jan have = 5.

Question 6.
What is the next number in the counting pattern?
29, 39, 49, 59, _69__

Answer:
The number is 69.

Explanation:
In the above-given question,
given that,
the numbers are 29, 39, 49, 59, and 69.
the numbers are adding by 10.
the number is 69.

Lesson 4.10 Algebra • Write Equations to Represent Addition

Essential Question
How do you write a number sentence to represent a problem?

Listen and Draw
Draw to show how you found the answer.

Answer:
The number of students in two calsses = 66.

Explanation:
In the above-given question,
given that,
Mrs. James has 22 students in her class.
Mr. Williams has 24 students in his class.
22 + 44 = 66.
the number of students in two classes = 66.

Math Talk
MATHEMATICAL PRACTICES
Communicate Explain how you found the number of children on the bus.

Model and Draw

You can write a number sentence to show a problem.
Sandy has 16 pencils. Nancy has 13 pencils. How many pencils do the two girls have?


The two girls have _29_ pencils

Answer:
The number of pencils = 29.

Explanation:
In the above-given question,
given that,
Sandy has 16 pencils.
Nancy has 13 pencils.
16 + 13 = 29.
the number of pencils = 29.

Share and Show MATH BOARD

Write a number sentence for the problem. Use a for the missing number. Then solve.

Question 1.
Carl sees 25 melons at the store. 15 are small and the rest are large. How many melons are large?

_10__ melons

Answer:
The number of melons are large = 10.

Explanation:
In the above-given question,
given that,
Carl sees 25 melons at the store.
15 are small and the rest are lerge.
25 – 15 = 10.
the number of melons are large = 10.

Question 2.
83 people went to a movie on Thursday. 53 of them were children and the rest were adults. How many adults were at the movie?
__83_-_53__=__30____
__30_ adults

Answer:
The number of adults were at the movie = 30.

Explanation:
In the above-given question,
given that,
83 people went to a movie on thursday.
53 of them were children and the rest were adults.
83 – 53 = 30.
the number of adults were at the movie = 30.

On Your Own

Write a number sentence for the problem. Use a for the missing number. Then solve.

Question 3.
Jake had some stamps. Then he bought 20 more stamps. Now he has 56 stamps. How many stamps did Jake have to start?

_36_ stamps

Answer:
The number of stamps did jake have to start = 36.

Explanation:
In the above-given question,
given that,
Jake had some stamps.
Then he bought 20 more stamps.
Now he has 56 stamps.
56 – 20 = 36.
the number of stamps did jake have to start = 36.

Question 4.
THINK SMARTER
Braden’s class went to the park. They saw 26 oak trees and 14 maple trees. They also saw 13 cardinals and 35 blue jays. Compare the number of trees and the number of birds that the class saw.

Answer:
The number of trees = 40.
The number of birds = 48.

Explanation:
In the above-given question,
given that,
Braden’s class went to the park.
They saw 26 oak trees and 14 maple trees.
They also saw 13 cardinals and 35 blue jays.
40 + 48.
the number of trees = 40.
the number of birds = 48.

MATHEMATICAL PRACTICES
Explain Amy needs about 70 paper clips. Without adding, circle 2 boxes that would be close to the amount that she needs. Explain how you made your choices.

__70___clips_______
__81____clips______
___70_+__81______

Answer:
The number clips = 70, and 81.

Explanation:
In the above-given question,
given that,
Amy needs about 70 paper clips.
Without adding, circle 2 boxes that would be close to the amount that she needs.
the number clips = 70, and 81.

Problem Solving • Applications

Question 6.
MATHEMATICAL PRACTICE
Make Sense of Problems
Mr. Walton baked 24 loaves of bread last week. He baked 28 loaves of bread this week. How many loaves of bread did he bake in the two weeks?
_52__ loaves of bread

Answer:
The number of loaves of bread did he bake = 52.

Explanation:
In the above-given question,
given that,
Mr. Walton baked 24 loaves of bread last week.
He baked 28 loaves of bread this week.
24 + 28 = 52.
the number of loaves of bread did he bake = 52.

Question 7.
THINK SMARTER
Denise saw these bags of oranges at the store.

Denise bought 26 oranges. Which two bags of oranges did she buy? Draw or write to show how you solved the problem.

Explain how you found the numbers that have a sum of 26.
___14_________
___12_________
_14__+_12__=__26____

Answer:
The number of oranges did she buy = 14 and 12.

Explanation:
In the above-given question,
given that,
Denise bought 26 oranges.
Which two bags of oranges did she buy.
14 + 12 = 36.
the number of oranges did she buy = 36.

TAKE HOME ACTIVITY
• Have your child explain how he or she writes a number sentence to stand for a problem.

Algebra • Write Equations to Represent Addition Homework & Practice 4.10

Write a number sentence for the problem. Use a for the missing number. Then solve.

Question 1.
Emily and her friends went to the park. They saw 15 robins and 9 blue jays. How many birds did they see?
__24__
_24_ birds

Answer:
The number of birds did they see = 24.

Explanation:
In the above-given question,
given that,
Emily and her friends went to the park.
They saw 15 robins and 9 blue jays.
15 + 9 = 24.
the number of birds did they see = 24.

Question 2.
Joe has 13 fish in one tank. He has 8 fish in another tank. How many fish does Joe have?
__13_+_8_____
_21_ fish

Answer:
The number of fish does Joe has = 21.

Explanation:
In the above-given question,
given that,
Joe has 13 fish in one tank.
He has 8 fish in another tank.
13 + 8 = 21.
the number of fish does Joe have = 21.

Problem Solving

Solve.

Question 3.
There are 21 children in Kathleen’s class. 12 of the children are girls. How many children in her class are boys?
_9_ boys

Answer:
The number of children in her class is boys = 9.

Explanation:
In the above-given question,
given that,
There are 21 children in Kathleen’s class.
12 of the children are girls.
21 – 12 = 9.
the number of children in her class is boys = 9.

Question 4.
WRITE Math
Explain how you decided what number sentence to write for Exercise 1.
__________________________
__________________________
__________________________
__________________________

Lesson Check

Question 1.
Clare has 14 blocks. Jasmine has 6 blocks. How many blocks do they have?
14 + 6 = _20_ blocks

Answer:
The number of blocks do they have = 20.

Explanation:
In the above-given question,
given that,
Clare has 14 blocks.
Jasmine has 6 blocks.
14 + 6 = 20.
the number of blocks do they have = 20.

Question 2.
Matt finds 16 acorns at the park. Trevor finds 18 acorns. How many acorns do they find?
16 + 8 = _24_ acorns

Answer:
The number of acorns do they find = 24.

Explanation:
In the above-given question,
given that,
Matt finds 16 acorns at the park.
Trevor finds 18 acorns.
16 + 18 = 24.
the number of acorns do they find = 24.

Spiral Review

Question 3.
Leanne counted 19 ants. Gregory counted 6 ants. How many more ants did Leanne count than Gregory?
19 – 6 = _13_ ants

Answer:
The number of more ants did Leanne count = 13.

Explanation:
In the above-given question,
given that,
Leanne counted 19 ants.
Gregory counted 6 ants.
19 – 6 = 13.
the number of more ants did Leanne count = 13.

Question 4.
What is the sum?
4 + 3 + 6 = _13__

Question 5.
Ms. Santos puts seashells into 4 rows. She puts 6 seashells in each row. How many seashells are there altogether?
_24_ seashells

Answer:
The number of seashells = 24.

Explanation:
In the above-given question,
given that,
Ms. Santos puts seashells into 4 rows.
she puts 6 seashells in each row.
6 x 4 = 24.
the number of seashells = 24.

Question 6.
Circle the even number

Answer:
The number is 14.

Explanation:
In the above-given question,
given that,
the numbers are 9, 14, 17, and 21.
among all the numbers.
14 is an even number.

Lesson 4.11 Algebra • Find Sums for 3 Addends

Essential Question
What are some ways to add 3 numbers?

Listen and Draw

Draw to show each problem.

Math Talk
MATHEMATICAL PRACTICES

Which numbers did you add first in the first problem? Explain why.

Model and Draw

There are different ways to add three numbers.
How can you add 23, 41, and 17?
Think of different ways to choose digits in the ones column to add first.

Share and Show MATH BOARD

Add.

Question 1.

Answer:
The sum is 99.

Explanation:
In the above-given question,
given that,
the numbers are 33, 34, and 32.
4 + 3 = 7 and 7 + 2 = 9.
4 + 2 = 6 and 6 + 3 = 9.
3 + 3 + 3 = 9.
The number is 99.

Question 2.

Answer:
The sum is 75.

Explanation:
In the above-given question,
given that,
the numbers are 47, 21, and 7.
7 + 1 = 8 and 1 + 7 = 8.
7 + 7 = 14 and 7 + 7 = 14.
4 + 2 + 0 = 6.
47 + 21 + 7 = 75.
The number is 75.

Question 3.

Answer:
The sum is 93.

Explanation:
In the above-given question,
given that,
the numbers are 65, 13, and 15.
5 + 3 = 8 and 3 + 5 = 8.
3 + 5 = 8 and 5 + 3 = 8.
6 + 1 + 1 = 8.
65 + 13 + 15 = 93.
The number is 93.

Question 4.

Answer:
The sum is 107.

Explanation:
In the above-given question,
given that,
the numbers are 58, 27, and22.
8 + 7 = 15 and 7 + 8 = 15.
7 + 2 = 9 and 2 + 7 = 9.
5 + 2 + 2 = 9.
58 + 27 + 22 = 107.
The number is 107.

Question 5.

Answer:
The sum is 70.

Explanation:
In the above-given question,
given that,
the numbers are 12, 22, and 36.
2 + 2 = 4 and 2 + 2 = 4.
2 + 6 = 8 and 6 + 2 = 8.
1 + 2 + 3 = 6.
12 + 22 + 36 = 70.
The number is 70.

Question 6.

Answer:
The sum is 88.

Explanation:
In the above-given question,
given that,
the numbers are 10, 42, and 36.
0 + 2 = 2 and 2 + 0 = 2.
6 + 2 = 8 and 2 + 6 = 8.
4 + 1 + 3 = 8.
10 + 42 + 36 = 88.
The number is 88.

Question 7.

Answer:
The sum is 68.

Explanation:
In the above-given question,
given that,
the numbers are 31, 21, and 16.
1 + 1 = 2 and 1 + 1 = 2.
6 + 1 = 7 and 1 + 6 = 7.
3 + 2 + 1 = 6.
31 + 21 + 16 = 68.
The number is 68.

Question 8.

Answer:
The sum is 107.

Explanation:
In the above-given question,
given that,
the numbers are 30, 29, and 48.
0 + 9 = 9 and 9 + 0 = 9.
9 + 8 = 17 and 8 + 9 = 17.
4 + 2 + 3 = 9.
30 + 29 + 48 = 107.
The number is 107.

On Your Own

Add.

Question 9.

Answer:
The sum is 67.

Explanation:
In the above-given question,
given that,
the numbers are 22, 27, and 18.
2 + 7 = 9 and 7 + 2 = 9.
7 + 8 = 15 and 8 + 7 = 15.
2 + 2 + 1 = 5.
22 + 27 + 18 = 67.
The number is 67.

Question 10.

Answer:
The sum is 76.

Explanation:
In the above-given question,
given that,
the numbers are 26, 31, and 19.
6 + 1 = 7 and 1 + 6 = 7.
1 + 9 = 9 and 9 + 1 = 9.
2 + 3 + 1 = 6.
26 + 31 + 19 = 76.
The number is 76.

Question 11.

Answer:
The sum is 88.

Explanation:
In the above-given question,
given that,
the numbers are 24, 11, and 53.
4 + 1 = 5 and 1 + 4 = 4.
1 + 3 = 3 and 3 + 1 = 4.
2 + 1 + 5 = 8.
24 + 11 + 53 = 88.
The number is 88.

Question 12.

Answer:
The sum is 80.

Explanation:
In the above-given question,
given that,
the numbers are 33, 43, and 4.
3 + 3 = 6 and 3 + 4 = 7.
7 + 6 = 13 and 6 + 7 = 13.
3 + 4 + 0 = 7.
33 + 43 + 4 = 80.
The number is 80.

Question 13.

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 40, 17, and 32.
7 + 2 = 9 and 2 + 7 = 9.
4 + 1 + 3 = 8.
40 + 17 + 32 = 89.
The number is 89.

Question 14.

Answer:
The sum is 75.

Explanation:
In the above-given question,
given that,
the numbers are 25, 25, and 25.
5 + 5 = 10 and 5 + 5 = 10.
10 + 5 = 15 and 5 + 10 = 15.
2 + 2 + 2 = 6.
25 + 25 + 25 = 75.
The number is 75.

Question 15.

Answer:
The sum is 108.

Explanation:
In the above-given question,
given that,
the numbers are 19, 65, and 24.
9 + 5 = 14 and 5 + 9 = 14.
14 + 4 = 18 and 4 + 14  = 18.
1 + 2 + 6 = 10.
19 + 65 + 24 = 108.
The number is 108.

Question 16.

Answer:
The sum is 93.

Explanation:
In the above-given question,
given that,
the numbers are 73, 4, and 16.
3 + 4 = 7 and 4 + 3 = 7.
4 + 6 = 10 and 10 + 3 = 13.
7 + 1 + 0 = 8.
73 + 4 + 16 = 93.
The number is 93.

Question 17.
GO DEEPER
Mrs. Carson is making food for a party. She makes 20 ham sandwiches, 34 turkey sandwiches, and 38 tuna salad sandwiches. How many sandwiches does she make for the party?
_92_ sandwiches

Answer:
The number of sandwiches = 92.

Explanation:
In the above-given question,
given that,
Mrs. Carson is making food for a party.
She mekes 20 ham sandwwiches, 34 turkey sandwiches, and 38 tuna salad sandwiches.
20 + 34 + 38 = 92
the number of sandwiches = 92.

Question 18.
THINK SMARTER
Sophia had 44 marbles. She bought 24 more marbles. Then John gave her 35 marbles. How many marbles does Sophia have now?

_108_ marbles

Answer:
The number of marbles does Sophia have now = 108.

Explanation:
In the above-given question,
given that,
Sophia had 44 marbles.
she bought 24 more marbles.
Then John gave her 35 marbles.
44 + 24 + 35 = 108.
the number of seashells = 108.

Problem Solving • Applications

Solve. Write or draw to explain.

Question 19.
MATHEMATICAL PRACTICE
Evaluate Mrs. Shaw has 23 red notebooks, 15 blue notebooks, and 27 green notebooks. How many notebooks does she have?
_65_ notebooks

Answer:
The number of notebooks = 65.

Explanation:
In the above-given question,
given that,
Mrs. Shaw has 23 red notebooks, 15 blue notebooks, and 27 green notebooks.
23 + 15 + 27 = 65.
the number of notebooks = 65.

Question 20.
MATHEMATICAL PRACTICE
Model Mathematics
Write a story problem that could be solved using this number sentence.
12 + 28 + = 53
__12_+_28__+_13__=_53_______
_____53__-_40_=_13________________
__________________________
__________________________

Answer:
The sum is 53.

Explanation:
In the above-given question,
given that,
the numbers are 12, 28, and 13.
53 – 40 = 13.
the number is 13.

Question 21.
THINK SMARTER
Mr. Samson gave his students 31 yellow pencils, 27 red pencils, and 25 blue pencils. How many pencils did he give to his students?
_83_ pencils

Answer:
The number of pencils = 83.

Explanation:
In the above-given question,
given that,
Mr. Samson gave his students 31 yellow pencils, 27 red pencils, and 25 blue pencils.
31 + 27 + 25 = 83.
the number of pencils = 83.

TAKE HOME ACTIVITY
• Ask your child to show you two ways to add 17, 13, and 24.

Algebra • Find Sums for 3 Addends Homework & Practice 4.11

Add.

Question 1.

Answer:
The sum is 68.

Explanation:
In the above-given question,
given that,
the numbers are 23, 20, and 25.
3 + 0 = 3 and 3 + 5 = 8.
5 + 3 = 8.
2 + 2 + 2 = 6.
23 + 20 + 25 = 68.

Question 2.

Answer:
The sum is 75.

Explanation:
In the above-given question,
given that,
the numbers are 15, 22, and 38.
5 + 2 = 7 and 2 + 5 = 7.
8 + 2 = 10 and 10 + 5  = 15.
1 + 2 + 3 = 6.
15 + 22 + 38 = 75.

Question 3.

Answer:
The sum is 99.

Explanation:
In the above-given question,
given that,
the numbers are 13, 52, and 34.
3 + 2 = 5 and 5 + 4 = 9.
1 + 5 + 3 = 9.
13 + 52 + 34 = 99.

Question 4.

Answer:
The sum is 86.

Explanation:
In the above-given question,
given that,
the numbers are 27, 40, and 19.
7 + 9 = 16 and 9 + 7 = 16.
1 + 2 + 4 = 7.
27 + 40 + 19 = 86.

Question 5.

Answer:
The sum is 100.

Explanation:
In the above-given question,
given that,
the numbers are 31, 45, and 24.
1 + 5 = 5 and 5 + 4 = 9.
3 + 2 + 4 = 9.
31 + 45 + 24 = 100.

Question 6.

Answer:
The sum is 73.

Explanation:
In the above-given question,
given that,
the numbers are 34, 11, and 28.
4 + 1 = 5 and 5 + 8 = 13.
1 + 2 + 3 = 6.
34 + 11 + 28 = 73.

Question 7.

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 42, 36, and 11.
2 + 6 = 8 and 8 + 1 = 9.
4 + 3 + 1 = 8.
42 + 36 + 11 = 89.

Question 8.

Answer:
The sum is 74.

Explanation:
In the above-given question,
given that,
the numbers are 18, 22, and 34.
8 + 2 = 10 and 2 + 4 = 6.
10 + 4 = 14 and 4 + 10  = 14.
1 + 2 + 3 = 6.
18 + 22 + 34 = 74.

Question 9.

Answer:
The sum is 97.

Explanation:
In the above-given question,
given that,
the numbers are 53, 19, and 25.
9 + 5 = 14 and 3 + 9 = 12.
12 + 5 = 17.
1 + 2 + 5 = 8.
53 + 19 + 25 = 97.

Problem Solving

Solve. Write or draw to explain.

Question 10.
Liam has 24 yellow pencils, 15 red pencils, and 9 blue pencils. How many pencils does he have altogether?
_48__ pencils

Answer:
The number of pencils = 48.

Explanation:
In the above-given question,
given that,
Liam has 24 yellow pencils, 15 red pencils, and 9 blue pencils.
24 + 15 + 9 = 48.
The number of pencils = 48.
Question 11.
WRITE Math
Describe how you would find the sum of 24, 36, and 13.

__________________________
__________________________

Answer:
The sum is 73.

Explanation:
In the above-given question,
given that,
the numbers are 24, 36, and 13.
4 + 6 = 10 and 3 + 6 = 9.
10 + 9 = 19.
1 + 2 + 3 = 6.
24 + 36 + 13 = 73.

Lesson Check

Question 1.
What is the sum?

Answer:
The sum is 69.

Explanation:
In the above-given question,
given that,
the numbers are 22, 31, and 16.
2 + 1 = 3 and 6 + 1 = 7.
7 + 3 = 10.
1 + 2 + 3 = 6.
22 + 31+ 16 = 69.

Question 2.
What is the sum?

Answer:
The sum is 73.

Explanation:
In the above-given question,
given that,
the numbers are 17, 26, and 30.
7 + 6 = 13 and 6 + 7 = 13.
1 + 2 + 3 = 6.
17 + 26 + 30 = 73.

Spiral Review

Question 3.
What number is 10 more than 127?
____137_____

Answer:
The number is 137.

Explanation:
In the above-given question,
given that,
the number is 127.
10 more than 127 = 128.
the number is 137.

Question 4.
Mr. Howard’s phone has 4 rows of buttons. There are 3 buttons in each row. How many buttons are on Mr. Howard’s phone?
_12_ buttons

Answer:
The number of buttons = 12.

Explanation:
In the above-given question,
given that,
Mr. Howard’s phone has 4 rows of buttons.
there are 3 buttons in each row.
4 x 3 = 12.
the number of buttons = 12.
Question 5.
Bob tosses 8 horseshoes. Liz tosses 9 horseshoes. How many horseshoes do they toss?
8 + 9 = _17_ horseshoes

Answer:
The number of horseshoes = 17.

Explanation:
In the above-given question,
given that,
Bob tosses 8 horseshoes.
Liz tosses 9 horseshoes.
8 + 9 = 17.
The number of horseshoes = 17.

Question 6.
What number can be written 3 hundreds 1 ten 5 ones?
__315_______

Answer:
The number is 315.

Explanation:
In the above-given question,
given that,
The number can be written has 3 hundreds 1 ten 5 ones.
the number is 315.

Lesson 4.12 Algebra • Find Sums for 4 Addends

Essential Question
What are some ways to add 4 numbers?

Listen and Draw

Show how you solved each problem.

Math Talk
MATHEMATICAL PRACTICES
Describe how you found the answer to the first problem.

Share and Show MATH BOARD

Add.

Question 1.

Answer:
The sum is 87.

Explanation:
In the above-given question,
given that,
the numbers are 23, 11, 22, and 31.
3 + 1 = 4 and 2 + 1 = 3.
4 + 3 = 7.
1 + 2 + 3 + 2 = 8.
23 + 11 + 22 + 31 = 87.

Question 2.

Answer:
The sum is 73.

Explanation:
In the above-given question,
given that,
the numbers are 30, 15, 3, and 25.
3 + 5 = 8 and 5 + 3 = 8.
8 + 5 = 13.
1 + 2 + 3  = 8.
30 + 15 + 25 + 3 = 73.

Question 3.

Answer:
The sum is 105.

Explanation:
In the above-given question,
given that,
the numbers are 13, 26, 54, and 12.
3 + 6 = 9 and 4 + 2 = 6.
9 + 6 = 15.
1 + 2 + 5 + 1 = 9.
13 + 26 + 54 + 12 = 105.

Question 4.

Answer:
The sum is 65.

Explanation:
In the above-given question,
given that,
the numbers are 27, 2, 23, and 13.
3 + 3 = 6 and 2 + 7 = 9.
9 + 6 = 15.
1 + 2 + 2 = 5.
27 + 2 + 23 + 13 = 65.

Question 5.

Answer:
The sum is 145.

Explanation:
In the above-given question,
given that,
the numbers are 45, 14, 35, and 51.
5 + 4 = 9 and 5 + 1 = 6.
9 + 6 = 15.
1 + 4 + 3 + 5 = 13.
45 + 14 + 35 + 51 = 145.

Question 6.

Answer:
The sum is 98.

Explanation:
In the above-given question,
given that,
the numbers are 32, 21, 15, and 30.
2 + 1 = 3 and 5 + 0 = 5.
5 + 3 = 8.
1 + 2 + 3 + 3 = 9.
32 + 21 + 15 + 30 = 98.

On Your Own

Add.

Question 7.

Answer:
The sum is 95.

Explanation:
In the above-given question,
given that,
the numbers are 36, 12, 21, and 26.
6 + 2 = 8 and 6 + 1 = 7.
8 + 7 = 15.
1 + 2 + 3 + 2 = 8.
36 + 12 + 21 + 26 = 95.

Question 8.

Answer:
The sum is 68.

Explanation:
In the above-given question,
given that,
the numbers are 14, 23, 20, and 11.
4 + 3 = 7 and 3 + 1 = 4.
7 + 1 = 8.
1 + 2 + 1 + 2 = 6.
14 + 23 + 20 + 11 = 68.

Question 9.

Answer:
The sum is 77.

Explanation:
In the above-given question,
given that,
the numbers are 22, 13, 15, and 27.
3 + 2 = 5 and 5 + 7 = 12.
12 + 5 =17.
1 + 2 + 1 + 2 = 6.
22 + 13 + 15 + 27 = 77.

Question 10.

Answer:
The sum is 120.

Explanation:
In the above-given question,
given that,
the numbers are 45, 12, 41, and 22.
2 + 1 = 3 and 2 + 5 = 7.
7 + 3 = 10.
1 + 2 + 4 + 4 = 11.
45 + 12 + 41 + 22 = 120.

Question 11.

Answer:
The sum is 214.

Explanation:
In the above-given question,
given that,
the numbers are 59, 31, 51, and 73.
3 + 1 = 4 and 9 + 1 = 10.
4 + 10 = 14.
5 + 5 + 3 + 7 = 20.
59 + 31 + 51 + 73 = 214.

Question 12.

Answer:
The sum is 97.

Explanation:
In the above-given question,
given that,
the numbers are 34, 10, 22, and 31.
2 + 1 = 3 and 4 + 0 = 4.
4 + 3 = 7.
1 + 3 + 3 + 2 = 9.
34 + 10 + 22 + 31 = 97.

Question 13.
GO DEEPER Some friends need 100 bows for a project. Sara brings 12 bows, Angela brings 50 bows, and Nora brings 34 bows. How many more bows do they need?
_4_ more bows

Answer:
The number of more bows = 4.

Explanation:
In the above-given question,
given that,
Sara brings 12 bows, Angela brings 50 bows, and Nora brings 34 bows.
12 + 50 + 34 = 96.
100 – 4 = 96.
The number of bows needed more = 4.
Solve. Write or draw to explain.

Question 14.
THINK SMARTER
Laney added four numbers which have a total of 128. She spilled some juice over one number. What is that number?

Answer:
The number is 33.

Explanation:
In the above-given question,
given that,
the numbers are 22 , 43, 33, and 30 = 128.
the number is 33.

Problem Solving • Applications

Use the table. Write or draw to show how you solved the problems.

Question 15.
MATHEMATICAL PRACTICE
Evaluate How many shells did the four children collect at the beach?
_96_ shells

Answer:
The number of shells = 96.

Explanation:
In the above-given question,
given that,
34 + 15 + 26 + 21 = 96.
The number of shells = 96.

Question 16.
GO DEEPER
Which two children collected more shells at the beach, Katie and Paul, or Noah and Laura?
_Katie__and___Noah______

Answer:
The two children collected more shells = Katie and Noah.

Explanation:
In the above-given question,
given that,
Katie collected 36 shells.
Noah collected 26 shells.
The number of shell collected Katie and Noah.

Question 17.
THINK SMARTER
There were 24 red beads, 31 blue beads, and 8 green beads in a jar. Then Emma put 16 beads into the jar. Write a number sentence to show the number of beads in the jar.

TAKE HOME ACTIVITY
• Have your child explain what he or she learned in this lesson.

Algebra • Find Sums for 4 Addends Homework & Practice 4.12

Add.

Question 1.

Answer:
The sum is 76.

Explanation:
In the above-given question,
given that,
the numbers are 18, 32, 23, and 3.
8 + 2 = 10 and 3 + 3 = 6.
10 + 6 = 16.
1 + 2 + 3 = 6.
18 + 32 + 23 + 3 = 76.

Question 2.

Answer:
The sum is 177.

Explanation:
In the above-given question,
given that,
the numbers are 45, 31, 29, and 72.
5 + 1 = 6 and 2 + 9 = 11.
11 + 6 = 17.
7 + 2 + 3 + 4 = 16.
45 + 31 + 29 + 72 = 177.

Question 3.

Answer:
The sum is 189.

Explanation:
In the above-given question,
given that,
the numbers are 24, 62, 70, and 33.
2 + 4 = 6 and 2 + 3 = 5.
6 + 3 = 9.
6 + 2 + 7 + 3 = 18.
24 + 62 + 70 + 33 = 189.

Question 4.

Answer:
The sum is 198.

Explanation:
In the above-given question,
given that,
the numbers are 83, 32, 61, and 22.
2 + 1 = 3 and 2 + 3 = 5.
5 + 3 = 8.
8 + 2 + 6 + 3 = 19.
83 + 32 + 61 + 22 = 198.

Question 5.

Answer:
The sum is 95.

Explanation:
In the above-given question,
given that,
the numbers are 37, 15, 31, and 12.
2 + 1 = 3 and 7 + 5 = 12.
12 + 3 = 15.
1 + 3 + 1 + 3 = 8.
37 + 15 + 31 + 12 = 95.

Question 6.

Answer:
The sum is 148.

Explanation:
In the above-given question,
given that,
the numbers are 21, 13, 96, and 18.
3 + 1 = 4 and 6 + 8 = 14.
14 + 4 = 18.
1 + 2 + 1 + 9 = 13.
21 + 13 + 96 + 18 = 148.

Problem Solving

Solve. Show how you solved the problem.

Question 7.
Kinza jogs 16 minutes on Monday, 13 minutes on Tuesday, 9 minutes on Wednesday, and 20 minutes on Thursday. What is the total number of minutes she jogged?
_58_ minutes

Answer:
The number of minutes she jogged = 58.

Explanation:
In the above-given question,
given that,
Kinza jogs 16 minutes on Monday, 13 minutes on Tuesday, 9 minutes on Wednesday, and 20 minutes on Thursday.
16 + 13 + 9 + 20 = 58.
the number of minutes she jogged = 58.
Question 8.
WRITE Math
Describe two different strategies you could use to add 16 + 35 + 24 + 14.
____89______________________

Answer:
The sum is 89.

Explanation:
In the above-given question,
given that,
the numbers are 16, 35, 24, and 14.
6 + 5 = 11 and 4 + 4 = 8.
11 + 8 = 19.
1 + 2 + 1 + 3 = 7.
16 + 35 + 24 + 14 = 89.

Lesson Check

Question 1.
What is the sum?

Answer:
The sum is 133.

Explanation:
In the above-given question,
given that,
the numbers are 33, 12, 56, and 32.
2 + 3 = 5 and 2 + 6 = 8.
5 + 8 = 13.
1 + 3 + 5 + 3 = 133.
33 + 12 + 56 + 32 = 133.

Question 2.
What is the sum?

Answer:
The sum is 178.

Explanation:
In the above-given question,
given that,
the numbers are 41, 74, 43, and 20.
4 + 1 = 5 and 3 + 0 = 3.
5 + 3 = 8.
4 + 7 + 4 + 2 = 17.
41 + 74 + 43 + 20 = 178.

Spiral Review

Question 3.
Laura had 6 daisies. Then she found 7 more daisies. How many daisies does she have now?
6 + 7 = _13_ daisies

Answer:
The number of daisies she have now = 13.

Explanation:
In the above-given question,
given that,
Laura had 6 daisies. Then she found 7 more daisies.
6 + 7 = 13.
The number of daisies she has now = 13.

Question 4.
What is the sum?

Question 5.
Alan has 25 trading cards. He buys 8 more. How many cards does he have now?
25 + 8 = _33_ cards

Answer:
The number of cards = 33.

Explanation:
In the above-given question,
given that,
Alan has 25 trading cards.
He buys 8 more.
25 + 8 = 33.
The number of cards = 33.

Question 6.
Jen saw 13 guinea pigs and 18 gerbils at the pet store. How many pets did she see?
13 + 18 = _31_ pets

Answer:
The number of pets = 31.

Explanation:
In the above-given question,
given that,
Jen saw 13 guinea pigs and 18 gerbils at the pet store.
13 + 18 = 31.
The number of pets = 31.

2-Digit Addition Chapter 4 Review/Test

Question 1.
Beth baked 24 carrot muffins. She baked 18 apple muffins. How many muffins did Beth bake? Label the bar model. Write a number sentence
with a for the missing number. Solve.

Answer:
The number of muffins Beth bake = 42.

Explanation:
In the above-given question,
given that,
Beth baked 24 carrot muffins.
She baked 18 apple muffins.
24 + 18 = 42.
The number of muffins Beth bake = 42.

Question 2.
Carlos has 23 red keys, 36 blue keys, and 44 green keys. How many keys does he have?

Answer:
The number of keys = 103.

Explanation:
In the above-given question,
given that,
Carlos has 23 red keys, 36 blue keys, and 44 green keys.
23 ++ 36 + 44 = 103.
the number of keys = 103.

Question 3.
Mike sees 17 blue cars and 25 green cars at the toy store. How many cars does he see?

Mike sees _42_ cars.

Answer:
The number of cars = 42.

Explanation:
In the above-given question,
given that,
Mike see 17 blue cars and 25 green cars at the toy store.
17 + 25 = 42.
The number of cars = 42.

Describe how you solved the problem.
__________________________
__________________________

Question 4.
Jerry has 53 pencils in one drawer. He has 27 pencils in another drawer.
Draw a picture or write to explain how to find the number of pencils in both drawers.

Jerry has _80_ pencils.

Answer:
The number of pencils = 80.

Explanation:
In the above-given question,
given that,
Jerry has 53 pencils in one drawer.
He has 27 pencils in another drawer.
the number of pencils = 80.

Question 5.
THINK SMARTER
Lauren sees 14 birds. Her friend sees 7 birds. How many birds do Lauren and her friend see? Draw quick pictures to solve. Write the sum.

Did you regroup to find the answer? Explain.
__________________________
__________________________

Answer:
The number of birds = 21.

Explanation:
In the above-given question,
given that,
Lauren sees 14 birds. Her friend sees 7 birds.
14 + 7 = 21.
The number of birds = 21.

Question 6.
Matt says he can find the sum of 45 + 50 without rewriting it. Explain how you can solve this problem using mental math.
__________________________
__________________________

Question 7.
Ling sees the three signs at the theater.

Which two sections have 78 seats?
Explain how you made your choices.
__________________________
__________________________

Answer:
The number of signs at the theater = 78.

Explanation:
In the above-given question,
given that,
Section A has 35 seats.
Section B has 43 seats.
35 + 43 = 78.
The number of signs at the theater = 78.

Question 8.
Leah put 21 white marbles, 31 black marbles, and 7 blue marbles in a bag. Then her sister added 19 yellow marbles.
Write a number sentence to show the number of marbles in the bag.
__21___+_31__+__7_=___59____________

Answer:
The number of marbles = 59.

Explanation:
In the above-given question,
given that,
Leah put 21 white marbles, 31 black marbles, and 7 blue marbles in a bag.
21 + 31 + 7 = 59.
The number of marbles = 59.

Question 9.
Nicole made a necklace. She used 13 red beads and 26 blue beads. Show how you can break apart the addends to find how many beads Nicole used.

Answer:
The number of beads = 39.

Explanation:
In the above-given question,
given that,
Nicole made a necklace. She used 13 red beads and 26 blue beads.
13 + 26 = 39.
The number of beads = 39.

Question 10.
GO DEEPER
Without finding the sums, does the pair of addends have a sum greater than 100? Choose Yes or No.

Answer:
The sum is 143.

Explanation:
In the above-given question,
given that,
the numbers are 51 and 92.
51 + 92 = 143.

Answer:
The sum is 69.

Explanation:
In the above-given question,
given that,
the numbers are 27 and 42.
27 + 42 = 69.

Answer:
The sum is 115.

Explanation:
In the above-given question,
given that,
the numbers are 82 and 33.
82 + 33 = 115.

Explain how you decided which pairs have a sum greater than 100.
__________________________
__________________________
__________________________

Answer:
The pairs which have a sum greater than 100 = 51 + 92, and 82 + 33.

Explanation:
In the above-given question,
given that,
the pairs are 51 + 92 and 82 + 33.
The numbers have greater than 100.

Question 11.
Leslie finds 24 paper clips in her desk. She finds 8 more paper clips in her pencil box. Choose all the ways you can use to find how many paper clips Leslie has in all.

Answer:
The number of paper clips = 32.

Explanation:
In the above-given question,
given that,
Leslie finds paper clips in her desk.
She finds more paper clips in her pencil box.
24 + 8 = 32.
The number of shells = 32.

Question 12.
Mr. O’Brien visited a lighthouse. He climbed 26 stairs. Then he climbed 64 more stairs to the top. How many stairs did he climb at the lighthouse?
_90_ stairs

Answer:
The number of stairs he climbed at the lighthouse = 90.

Explanation:
In the above-given question,
given that,
Mr. O’Brien visited a lighthouse.
He climbed 26 stairs.
Then he climbed 64 more stairs to the top.
26 + 64 = 90.
The number of stairs he climbed at the lighthouse = 90.

Final Words:

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