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Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 3 Lesson 12 Problem Solving: Writing a Number Sentence existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 3 Lesson 12 Problem Solving: Writing a Number Sentence

Solve

Write a number sentence to solve each problem
Question 1.
Last week 57 people visited the animal shelter. This week 64 people visited. How many people visited the animal shelter in the last two weeks?
57 + 64 = ?
57 + 54 = 121 people
Answer:
Number of people visited the animal shelter in the last two weeks = 121.

Explanation:
Number of people visited the animal shelter last week = 57.
Number of people visited the animal shelter this week = 64.
Number of people visited the animal shelter in the last two weeks = Number of people visited the animal shelter last week + Number of people visited the animal shelter this week
= 57 + 64
= 121.

Question 2.
This week the animal shelter spent $350 on dog food and $160 on cat food. How much more did the shelter spend on dog food than cat food this week?
Answer:
$190 more the shelter spend on dog food than cat food this week.

Explanation:
Amount of money this week the animal shelter spent on dog food = $350.
Amount of money this week the animal shelter spent on cat food = $160.
Difference:
Amount of money this week the animal shelter spent on dog food – Amount of money this week the animal shelter spent on cat food
= $350 – $160
= $190.

Question 3.
Last year the animal shelter took in 17 white cats. This year the animal shelter took in 12 white cats. How many more white cats did the shelter take in last year than it did this year?
Answer:
5 more white cats the shelter take in last year than it did this year.

Explanation:
Number of white cats Last year the animal shelter took = 17.
Number of white cats this year the animal shelter took = 12.
Difference:
Number of white cats Last year the animal shelter took – Number of white cats this year the animal shelter took
= 17 – 12
= 5.

Question 4.
On Saturday, volunteers collected $549 for the animal shelter. On Sunday, they collected $368. How much money did the volunteers collect last weekend?
Answer:
Amount collected by volunteers for the animal shelter last weekend = $917.

Explanation:
Amount collected by volunteers for the animal shelter on Saturday = $549.
Amount collected by volunteers for the animal shelter on Sunday = $368.
Amount collected by volunteers for the animal shelter last weekend = Amount collected by volunteers for the animal shelter on Saturday + Amount collected by volunteers for the animal shelter on Sunday
= $549 + $368
= $917.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 3 Lesson 11 Estimating Differences existing for free of cost.

McGraw-Hill Math Grade 3 Answer Key Chapter 3 Lesson 11 Estimating Differences

Estimate

Estimate each difference. Round to the nearest ten and then subtract.

Question 1.

Answer:

61 – 24 = 37.

Explanation:
Nearest ten of:
61 = 60.
24 = 20.
60 – 20 = 40.

Question 2.

Answer:

47 – 15 = 32.

Explanation:
Nearest ten of:
47 = 50.
15 = 20.
50 – 20 = 30.

Question 3.

Answer:

84 – 32 = 52.

Explanation:
Nearest ten of:
84 = 80.
32 = 30.
80 – 30 = 50.

Question 4.

Answer:

73 – 62 = 11.

Explanation:
Nearest ten of:
73 = 70.
62 = 60.
70 – 60 = 10.

Estimate each difference. Round each nearest hundred and then subtract.

Question 5.

Answer:
681 – 346 = 335.

Explanation:
Nearest hundred of:
681 = 700.
346 = 300.
700 – 300 = 400.

Question 6.

Answer:

575 – 439 = 136.

Explanation:
Nearest hundred of:
575 = 600.
439 = 400.
600 – 400 = 200.

Question 7.

Answer:

727 – 166 = 561.

Explanation:
Nearest hundred of:
727 = 700.
166 = 200.
700 – 200 = 500.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Lesson 5 Estimating Length Using Inches and Feet will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 8 Lesson 5 Estimating Length Using Inches and Feet

Estimate and Measure

Estimate the length of the object. Then measure the length. Ask an adult to help you measure.

Question 1.

Estimate: about ___________ inches
Measure: __________ inches
Answer:

Explanation:
Estimate: about 4 inches
Measure: 3 inches
I estimated and then measured the pen with the inch ruler
The pen is 3 inches long.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Lesson 6 Estimating Length Using Centimeters and Meters will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 8 Lesson 6 Estimating Length Using Centimeters and Meters

Estimate and Measure

Estimate the length of the object. Then measure the length. Ask an adult to help you measure.

Question 1.

Estimate: about ___________ centimeters
Measure: __________ centimeters
Answer:

Explanation:
Estimate: about 2 centimeters long
Measure: 3 centimeters
I estimated and then measured the length of the fish
It is 3 centimeters long.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Lesson 7 Measuring to Compare will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 8 Lesson 7 Measuring to Compare

Measure

Measure each object. Use a ruler. Then subtract and write the difference in length.

Question 1.

_____________ inches

____________ inch
The eraser is ____________ inch longer than the paper clip.
Answer:

Explanation:
The eraser is 2 inches long
The paper clip is 1 inch long
Subtract: 2 – 1 = 1
So, the eraser is 1 inch longer than the paper clip.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Lesson 8 Adding and Subtracting Lengths will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 8 Lesson 8 Adding and Subtracting Lengths

Write the equations to find the answer.

Question 1.
Greg has 16 inches of string. He uses 9 inches to wrap a present. How many inches of string are left?
Answer:
16 – 9 = 7 inches

Question 2.
Allison walks 20 feet. Then she walks 12 more feet. How many feet did Allison walk in all?
Answer:
32 feet

Explanation:
Allison walks 20 feet
Then she walks 12 more feet
Add: 20 and 12
20 + 12 = 32
So, Alison walked 32 feet in all.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Lesson 9 Using a Number Line to Show Lengths will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 8 Lesson 9 Using a Number Line to Show Lengths

Measure and Record

Use a ruler. Measure these objects in inches. Put dots on the number line to show their lengths.

Answer:

Explanation:
I measured the objects given above using an inch ruler
The eraser and car are 1 inch long and the crayon is 2 inch long
So, i marked 1 and 2 on the number line.

Question 1.
How many objects were 1 inch long?
Answer:
2 objects are 1 inch long, they are eraser and car.

Question 2.
How many objects were 2 inches long?
Answer:
1 object is 2 inches long that is a crayon.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Lesson 10 Adding and Subtracting Using a Number Line will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Answer Key Chapter 8 Lesson 10 Adding and Subtracting Using a Number Line

Solve

Use the number line to solve.

Question 1.
The roll of paper had 20 feet of paper. Ron used 3 feet for an art project. How many feet are left?
___________ feet
Answer:

17 feet

Explanation:
The roll of paper had 20 feet of paper
Ron used 3 feet for an art project
Subtract to find
20 – 3 = 17
So, 17 feet of paper roll is left.

Question 2.
Jess painted a wall that is 12 feet wide. Dean painted a wall that is 10 feet wide. How much more wider was the wall Jess painted?
_____________ feet wider
Answer:

2 feet wider

Explanation:
Jess painted a wall that is 12 feet wide
Dean painted a wall that is 10 feet wide
Subtract to find the answer
12 – 10 = 2
So, the wall Jess painted is 2 feet more wider.

Practice questions available in McGraw Hill Math Grade 2 Answer Key PDF Chapter 8 Test will engage students and is a great way of informal assessment.

McGraw-Hill Math Grade 2 Chapter 8 Test Answer Key

Measure the length of each object.

Question 1.

___________ inches
Answer:

Explanation:
I measured the note using an inch ruler
It is 1 inch long.

Question 2.

___________ centimeters
Answer:

Explanation:
I measured the pen suing a ruler
It is 6 centimeters long.

Question 3.

___________ centimeters
Answer:

Explanation:
I measured the paper clip using a ruler
It is 3 centimeters long.

Question 4.
Cara measures the length of her bed. It is 72 inches long. It is 6 feet long. Why are there more inches than feet? Explain.
Answer:
Inches is a shorter measurement than feet
1 feet = 12 inches
So, there are more inches than feet.

Estimate the length of the object. Then measure the length.

Question 5.

Estimate: about ___________ inches
Measure: ___________ inches
Answer:

Explanation:
Estimate: about 4 inches
Measure: 2 inches
I estimated and measured the length of the pen
The pen is 3 inches long.

Write an equation to help solve the problem.

Question 6.
Greta has 20 inches of string. She uses some string on a craft project. Now she has 12 inches of string left. How much string did Greta use for her project?
Answer:
20 – 12 = 8
8 inches

Explanation:
Greta has 20 inches of string
She uses some string on a craft project
Now she has 12 inches of string left
Subtract 12 from 20 to find the answer
So, 20 – 12 = 8
Therefore, Greta used 8 inches of the string.

Question 7.
A ladybug flies 22 meters. It stops and rests. Then it flies 21 more meters. How far does the ladybug fly?
Answer:
22 + 21 = 43
43 meters

Explanation:
A ladybug flies 22 meters
It stops and rests
Then it flies 21 more meters
Add to find the answer
So, 22 + 21 = 43
Therefore, the ladybug flies 43 meters.

Use a number line to solve each problem.

Question 8.
Lisa’s puppy was 12 inches tall. Put a red dot on the number line to show how tall Lisa’s puppy was. The puppy grew 3 inches. Use the number line to count on. How tall is Lisa’s puppy now?
___________ inches
Answer:

Explanation:
Lisa’s puppy was 12 inches tall
I kept a red dot on the number line to show how tall Lisa’s puppy was
The puppy grew 3 inches
I started at 12
I counted on 3 more using the number line
I reached at 15
So, Lisa’s puppy is now 15 inches long.

Question 9.
Mr. Martin rode his bike 11 miles on Monday. Put a blue dot on how far he rode. On Tuesday he rode 8 miles. Put a green dot on how far he rode. How many fewer miles did he ride on Tuesday? Count back on the number line.
_____________ miles
Answer:

Explanation:
Mr. Martin rode his bike 11 miles on Monday
I kept a blue dot on how far he rode
On Tuesday he rode 8 miles
I kept a green dot on how far he rode
I started at 11
I counted backward 3 using the number line
I reached at 8
So, Mr. Martin rode 3 miles fewer on Tuesday.

Excel in your academics by accessing McGraw Hill Math Grade 3 Answer Key PDF Chapter 4 Test existing for free of cost.

McGraw-Hill Math Grade 3 Chapter 4 Test Answer Key

Fill in the blanks.

Question 1.

4 groups of ______
5 + 5 + 5 + 5 = ___
4 × 5 = ___
Answer:
4 groups of 5.
4 × 5 = 20.

Explanation:
Number of rows = 4.
Number of columns = 5.
Number of dots = Number of rows × Number of columns
= 4 × 5
= 20.

Question 2.
3 + 3 + 3 = 3 × ___
Answer:
3 + 3 + 3 = 3 × 3 = 9.

Explanation:
3 + 3 + 3 = 3 × 3
= 9.

Question 3.
_____ + _____ = 2 × 5
Answer:
5 + 5 = 2 × 5.

Explanation:
5 + 5 = 2 × 5.

Question 4.

Answer:

Explanation:
Product of 7 and 2:
7 × 2 = 14.

Question 5.

Answer:

Explanation:
Product of 4 and 2:
4 × 2 = 8.

Question 6.

Answer:

Explanation:
Product of 9 and 2:
9 × 2 = 18.

Question 7.

Answer:

Explanation:
Product of 3 and 2:
3 × 2 = 6.

Question 8.
3 × 3 = ___
Answer:
3 × 3 = 9.

Explanation:
Product of 3 and 3:
3 × 3 = 9.

Question 9.
8 × 3 = ___
Answer:
8 × 3 = 24.

Explanation:
Product of 8 and 3:
8 × 3 = 24.

Question 10.
5 × 3 = ___
Answer:
5 × 3 = 15.

Explanation:
Product of 5 and 3:
5 × 3 = 15.

Question 11.
Write the multiplication sentence that shows how to find the number of apples.

Answer:
Number of apples = 16.

Explanation:
Number of rows of apples = 4.
Number of columns of apples = 4.
Number of apples = Number of rows of apples × Number of columns of apples
= 4 × 4
= 16.

Question 12.
write the number sentence that matches the picture.

Answer:
Number of aero planes = 10.

Explanation:
Number of aero planes in rows = 2.
Number of aero planes in columns = 5.
Number of aero planes = Number of aero planes in rows × Number of aero planes in columns
= 2 × 5
= 10.

Multiply.
Question 13.
Kim has 5 gloves. How many fingers do the gloves have in all? Draw to help you multiply.

________ × ________ = ________ fingers
Answer:
Number of fingers in the gloves have in all = 25.

Explanation:
Number of gloves Kim has = 5.
Number of fingers Kim has = 5.
Number of fingers in the gloves have in all = Number of gloves Kim has × Number of fingers Kim has
= 5 × 5
= 25.

Question 14.

Answer:

Explanation:
Product of 4 and 0:
4 × 0 = 0.

Question 15.

Answer:

Explanation:
Product of 7 and 1:
7 × 1 = 7.

Question 16.

Answer:

Explanation:
Product of 2 and 1:
2 × 1 = 2.

Question 17.

Answer:

Explanation:
Product of 5 and 0:
5 × 0 = 0.

Question 18.
I am a factor in a multiplication sentence. The other factor is 3. The product is 0. What number am I? How do you know?
Answer:
The number is 0.

Explanation:
The other factor is 3. The product is 0.
=> Let the first factor be x.
=> x × 3 = 0
=> x = 0 ÷ 3
=> x = 0.

Question 19.
4 × 7 = ____
7 × 4 = ____
Answer:
4 × 7 = 28.
7 × 4 = 28.

Explanation:
Product of:
4 × 7 = 28.
7 × 4 = 28.

Question 20.
2 × 5 = ___
5 × 2 = ___
Answer:
2 × 5 = 10.
5 × 2 = 10.

Explanation:
Product of :
2 × 5 = 10.
5 × 2 = 10.

Question 21.
3 × 8 = ___
8 × 3 = ___
Answer:
3 × 8 = 24.
8 × 3 = 24.

Explanation:
Product of:
3 × 8 = 24.
8 × 3 = 24.

Question 22.

Answer:

Explanation:
Product of 6 and 3:
6 × 3 = 18.

Question 23.

Answer:

Explanation:
Product of 9 and 4:
9 × 4 = 36.

Question 24.

Answer:

Explanation:
Product of 8 and 2:
8 × 2 = 16.

Question 25.

Answer:

Explanation:
Product of 6 and 5:
6 × 5 = 30.