Prasanna

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 13.3 Answer Key Use Addition to Check Subtraction.

Texas Go Math Grade 1 Lesson 13.3 Answer Key Use Addition to Check Subtraction

Explore

Draw and write to solve the problem.

Answer:

FOR THE TEACHER • Read the problem. Erin has 11 books. I borrow 4 of them. How many books does Erin still have? Allow children time to solve, using the top workspace. Then read this part of the problem: I give 4 books back to Erin. How many books does Erin have now?
Answer:
Given that
Total number of books at Erin = 11 books
I borrow books = 4
Total number of books near Erin still = 11 – 4 = 7
I gave 4 books back to Erin = 7 + 4 = 11.

Math Talk
Mathematical Processes

Does Erin get all her books back? Use the number sentences to explain how you know.
Answer:

Model and Draw

Why can you use addition to check subtraction?

Answer:

Share and Check

Subtract. Then add to check your answer.

Question 1.

Answer:

 

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Problem Solving

Subtract. Then add to check your answer.

Question 5.

Answer:

Question 6.

Answer:

Question 7.

Answer:

Question 8.

Answer:

Question 9.
H.O.T. Brianna has 13 sand dollars. Some sand dollars are broken. 5 sand dollars are not broken. Write number sentences about the sand dollars.

Answer:
Given that
Brianna has 13 sand dollars.
Some of the sand dollars are broken = 5
Some of the sand dollars are not broken = 13 – 5 = 8

Question 10.
H.O.T. Multi-Step Subtract to solve. Then add to check your answer.
Liam brings 15 cupcakes to the party. His friends eat all but 6 of them. How many cupcakes did they eat?

____________ cupcakes
Answer:
Given that
Liam brings cupcakes to the party = 15
Some of these friends are eaten and the remaining are 6
Cupcakes eaten by friends = 15 – 6 = 9.

Daily Assessment Task

Choose the correct answer.

Question 11.
Analyze 12 rabbits are in the pen. 3 rabbits are given away. 9 rabbits are left. Which addition sentence can you use to check the subtraction?

(A) 8 + 3 = 11
(B) 3 + 9 = 12
(C) 12 + 3 = 15
Answer:
Given that
Rabbits are in the pen = 12
Rabbits are given away = 3
Rabbits are left = 9
3 + 9 = 12 addition sentence is used to check the subtraction.
Option B is correct.

Question 12.
There are 13 ladybugs on a plant. Then 7 fly away. 6 ladybugs are left. Which fact can you use to check the subtraction?

(A) 6 + 7 = 13
(B) 13 – 8 = 5
(C) 7 – 6 = 1
Answer:
Given that
Ladybugs on a plant = 13
Ladybugs fly away = 7
Ladybugs left = 6
6 + 7 = 13 fact is used to check the subtraction

Question 13.
Multi-Step There are 15 people on a bus. 8 people get off. How many people are left? Which addition sentence can you use to check the subtraction?
(A) 15 + 8 = 23
(B) 8 + 9 = 17
(C) 7 + 8 = 15

Answer:
Total number of people on a bus = 15
Total number of people get off = 8
People left in bus = 15 – 8 = 7
7 + 8 = 15 is related to check the subtraction
Option C is the correct answer.

Question 14.
Texas Test Prep Which addition sentence can you use to check the subtraction?
11 – 2 = __________
(A) 9 + 2 = 11
(B) 7 + 8 = 15
(C) 6 + 2 = 8
Answer:
11 – 2 = 9
9 + 2 = 11 addition sentence is used to check the subtraction.

TAKE HOME ACTIVITY • Write 11 – 7 = _________ on a sheet of paper. Ask your child to find the difference and then write an addition sentence he or she can use to check the subtraction.
Answer:
11 – 7 = 4
Difference = 4
Addition sentence = 7 + 4 = 11

Texas Go Math Grade 1 Lesson 13.3 Homework and Practice Answer Key

Subtract. Then add to check your answer.

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Problem Solving

Question 5.
Marty has 14 stickers. Some stickers are torn. 8 stickers are not torn. Write number sentences about the stickers.

Answer:
Given that
Marty has stickers = 14
Stickers are not torn = 8
Stickers are torn = 14 – 8 = 6

Lesson Check

Choose the correct answer.

Question 6.
14 flowers are on a bush. Mike picks 6 flowers. 8 flowers are left on the bush. Which addition sentence can you use to check the subtraction?

(A) 6 + 8 = 14
(B) 7 + 6 = 13
(C) 14 + 4 = 18
Answer:
Given that
Flowers are on the bush = 14
Mike picks flowers = 6
Flowers left on the bush = 8
6 + 8 = 14 addition subtraction is used.

Question 7.
There are 17 children on a trip to the zoo. q children go to see the monkeys. The rest go to see the snakes. Which fact can you use to check the subtraction?
17 – 9 = ___________

Answer:
17 – 9 = 8

Question 8.
Which addition sentence can you use to check the subtraction?
12 – 5 = __________
(A) 6 + 6 = 12
(B) 7 + 5 = 12
(C) 9 + 5 = 14
Answer:
12 – 5 = 7
7 + 5 = 12 addition sentence can be used to check the subtraction.

Question 9.
Multi-step There are 15 children on the playground. 6 children go inside. How many children are left? Which addition sentence can you use to check the subtraction?
(A) 15 + 6 = 2
(B) 6 + 9 = 15
(C) 6 + 8 = 14
Answer:
Children on the playground = 15
Children go inside = 6
Children left = 15 – 6 = 9
9 + 6 = 15 addition sentence is used to check the subtraction.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 13.4 Answer Key Unknown Numbers.

Texas Go Math Grade 1 Lesson 13.4 Answer Key Unknown Numbers

Explore

Listen to the problem. Use to show the story. Draw to show your work.
Answer:

FOR THE TEACHER • Read the problem. Calvin has 7 toy cars that are red. He has some blue toy cars. He has 10 toy cars. How many blue toy cars does Calvin have?
Answer:
Calvin has red toy cars = 7
Total number of toy cars are 10
He has some blue cars.
Total number of blue cars = 10 – 7 = 3

Math Talk
Mathematical Processes

How many toy cars are blue? Explain how you got your answer.
Answer:

Model and Draw

What are the unknown numbers?

Use what you know about related facts to find the unknown parts.
Answer:
The unknown parts is 3.

Share and Show

Use to find the unknown numbers. Write the numbers.

Question 1.
8 + __________ = 15
15 – 8 = __________
Answer:
8 + 7 = 15
15 – 8 = 7

Question 2.
13 = 9 + __________
__________ = 13 – 9
Answer:
13 = 9 + 4
4 = 13 – 9

Question 3.
5 + __________ = 14
14 – 5 = __________
Answer:
5 + 9 = 14
14 – 5 = 9

Question 4.
14 = 6 + __________
__________ = 14 – 6
Answer:
14 = 6 + 8
8 = 14 – 6

Question 5.
9 + __________ = 16
16 – 9 = __________
Answer:
9 + 7 = 16
16 – 9 = 7

Question 6.
17 = 8 + __________
__________ = 17 – 8
Answer:
17 = 8 + 9
9 = 17 – 8

Problem Solving

Write the unknown numbers. Use if you need to.

Question 7.
7 + __________ = 15
15 – 7 = __________
Answer:
7 + 8 = 15
15 – 7 = 8

Question 8.
5 + __________ = 11
11 – 5 = __________
Answer:
5 + 6 = 11
11 – 5 = 6

Question 9.
__________ + 10 = 20
20 – 10 = __________
Answer:
10 + 10 = 20
20 – 10 = 10

Question 10
__________ + 9 = 16
16 – 9 = __________
Answer:
7 + 9 = 16
16 – 9 = 7

Question 11.
H.O.T. Solve. Rick has 10 party hats. He needs l hats for his party. How many more party hats does Rick need?

_________ party hats
Answer:

Question 12.
H.O.T. Multi-Step Solve. Use if you need to.
There were 15 children at the park. Some children went home. Then 4 more children came to the park. Now there are 13 children at the park. How many children went home?
__________ children
Answer:
Total number of children at the park = 15
More children came to park = 4
Total number of children came to park = 19
Now children at the park = 13
Children went to home = 19 – 13 = 6

Daily Assessment Task

Use . Choose the correct answer.

Question 13.
Analyze 14 cars are at the starting line. 10 cars cross the finish line. How many cars did not cross the finish line?

10 + ________ = 14
(A) 4
(B) 9
(C) 5
Answer:
Cars at the starting line = 14.
Cars cross the finish line = 10
The cars did not cross the line are 14 – 10 = 4
Option A is the correct answer.

Question 14.
Nick has 3 blue cubes in his hand. The cubes on his desk are yellow. He has 12 cubes. How many yellow cubes does Nick have?

3 + _________ = 12
12 – __________ = 3
(A) 6
(B) 9
(C) 4
Answer:
Total number of cubes near Nick = 12
Nick has blue cubes in his hand = 3
The remaining cubes are yellow colour
Total number of yellow colour cubes = 12 – 3 = 9.
Option B is the correct answer.

Question 15.
Multi-Step Tori counts the toys in her toy box. She has 3 bears and 3 cars. The rest are dolls. She has 12 toys in her toy box. How many dolls does Tori have?

(A) 9
(B) 5
(C) 6
Answer:
Tori has 3 bears and 3 cars.
Total number of toys in the toy box are 12
The rest of the toys are 12 – 3 + 3 = 6.
Option C is the correct answer.

Question 16.
Texas Test Prep What is the unknown number?
9 + _________ = 18
(A) 8
(B) 9
(C) 11
Answer:
9 is the unknown number.

TAKE HOME ACTIVITY • Hove your child exploin how using subtraction can help him or her find the unknown number in 7 + _________ = 16.
Answer:
7 + 9 = 16

Texas Go Math Grade 1 Lesson 13.4 Homework and Practice Answer Key

Write the unknown numbers. Draw if you need to.

Question 1.
9 + _________ = 18
18 – 9 = _________
Answer:
9 + 9 = 18
18 – 9 = 9

Question 2.
7 + _________ = 15
15 – 7 = _________
Answer:
7 + 8 = 15
15 – 7 = 8

Question 3.
12 = 8 + _________
_________ = 12 – 8
Answer:
12 = 8 + 7
7 = 12 – 7

Question 4.
_________ + 6 = 15
15 – 6 = _________
Answer:
9 + 6 = 15
15 – 6 = 9

Problem Solving

Question 5.
Mr. Brown has 7 sleeping bags. He has 16 campers. How many more sleeping bags does Mr. Brown need?

___________ sleeping bags
Answer:
Mr. Brown has sleeping bags = 7
He has campers = 16
More sleeping bags does Mr. Brown need = 16 – 7 = 9

Lesson Check

Choose the correct answer.

Question 6.
14 children are walking to raise money. 8 children finish the walk. How many children did not finish the walk?
8 + ________ = 14
(A) 4
(B) 7
(C) 6
Answer:
Children are walking to raise money = 14
Children finish the walk = 8
Children did not finish the walk = 14 – 8 = 6

Question 7.
Jasmine has 6 red pencils in her pencil case. The pencils in her hand are blue. She has 13 pencils. How many blue pencils does Jasmine have?
6 + __________ = 13
13 – _________ = 6
(A) 6
(B) 1
(C) 7
Answer:
Total number of pencils = 13
Jasmine has red pencils in her pencil case = 6
Pencils in her hand are blue.
Number of blue pencils = 13 – 6 = 7
Number of blue pencils are 7.

Question 8.
What is the unknown number?
________ + 8 = 16
(A) 8
(B) 9
(C) 7
Answer:
8 is the unknown number.

Question 9.
Multi-step Sam has 17 shirts in his drawer. He has 5 red shirts and 4 green shirts. The rest of his shirts are blue. How many blue shirts does Sam have?

(A) 9
(B) 8
(C) 10
Answer:
Total number of Sam has shirts in his drawer = 17
Total number of red shirts = 5
Total number of green shirts = 4
The remaining shirts are blue
Number of blue shirts = 17 – 5 + 4 = 8
Total number of blue shirts are 8.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 8.2 Answer Key Generate Addition Word Problems.

Texas Go Math Grade 1 Lesson 8.2 Answer Key Generate Addition Word Problems

Essential Question
How con an addition sentence help you write an addition story problem?
Explanation:
8 + 2 = 10
This is a addition sentence
Rosy catches 8 birds and then he catches 2 more birds.

Explore
4 + 3 = ____
Draw to show a story problem. Then solve.

4 + 3 = ___
Explanation:
4 + 3 = 7
Diana has 4 balloons and her sister gave 3 more balloons. How many balloons does Diana have now.

For The Teacher

• Have children tell a story problem using the addition fact. Then have them use two-color counters to solve the problem. Have them draw the counters to show their work.
  
  The story problem about the picture.
  . Kira has 8 computer games. There are 8 adventure games. how many games are there all together.
  8 + 8 = 16

Math Talk
Mathematical processes
Tell your story problem to a classmate. How are your story problems alike?
Explanation:
Mary sees 8 squirrels. Jack sees 9 more squirrels than Mary.
How many squirrels does Jack see?
Answer:
8 + 9 = 17 squirrels that jack see
This is my friends story problem.

Model and Draw

Write a story problem for the fact 5 + 3. Draw a picture to solve.

Explanation:

Share and Show

Write a story problem for the addition fact. Draw a picture to solve.

Question 1.
9 + 4 = ___

Answer:

Explanation:
Written a story problem for addition fact.

Problem Solving

Write a story problem for the addition fact. Draw a picture to solve.

Question 2.
H.O.T. 5 + ___ = 9

Answer:

Question 3.
H.O.T. Multi-Step ____ + ____ = 15

Answer:

Explanation:
Written  a story problem for 7 +8 = 15

Daily Assessment Task

Choose the correct answer.

Question 4.
Which addition fact matches the drawing?

Answer:

Explanation:
3 + 3 = 6
is the addition fact of the picturs

Question 5.
Which drawing matches the addition fact?
4 + 3 = __

Answer:

Question 6.
Use Tools Cody made this story problem for 6 + 5 = ___. 6 cows are on a hill. How many cows are on the hill now? Which sentence did Cody forget to write in the story problem?
(A) 5 cows join them.
(B) 5 cows walk away.
(C) 5 horses go up the hill.
Answer: A
Explanation:
6 + 5 = 11
6 cows are on a hill. 5 cows join them.

Question 7.
Texas Test Prep Which addition sentence matches the model?

(A) 5 + 3 = 8
(B) 8 + 8 = 16
(C) 6 + 8 = 14
Answer: C
Explanation:
6 + 8 = 14
Matches the sentence.

Take Home Activity

• Have your child write a story problem for 7 + 4. Then have him or her draw o picture to solve the problem.
  Explanation:
  Zima has 6 toy cars. Gaby has 9 more toy cars than Zima.
  
  6 + 9 = 15.

Texas Go Math Grade 1 Lesson 8.2 Homework and Practice Answer Key

Write a story problem for the addition fact.

Draw a picture to solve.

Question 1.
6 + __ = 11

Answer:

Explanation:
Written a story problem for 6 + 5 = 11

Problem Solving

Write a story problem for the addition fact. Draw a picture to solve.

Question 2.
____ + ___ = 17

Answer:

Explanation:
Written a story problem for 10 + 7 = 17

Texas Test Prep

Lesson Check

Choose the correct answer.

Question 3.
Which addition fact matches the drawing?

(A) 5 + 4 = 9
(B) 2 + 2 = 4
(C) 8 + 1 = 9
Answer: A
Explanation:
5 + 4 = 9 matches the addition fact.

Question 4.
Which drawing matches the addition fact?
4 + 8 = ___

Answer:

Explanation:
4 + 8 = 12
Bubbled the drawing which matches the addition fact.

Question 5.
Which addition sentence matches the counters?

(A) 7 + 7 = 14
(B) 6 + 8 = 14
(C) 5 + 9 = 14
Answer: C
Explanation:
5 + 9 = 14
Matches the addition counter.

Question 6.
Write a story problem for the fact 9 + 7. Draw a picture to solve.

Answer:

Explanation:
9 cows eating grass 7 more cows joined. How many cows are eating grass.
9 + 7 = 16
Written a story problem for addition fact

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 8.3 Answer Key Generate Subtraction Word Problems.

Texas Go Math Grade 1 Lesson 8.3 Answer Key Generate Subtraction Word Problems

Essential Question
How can a subtraction sentence help you write a subtraction story problem?
Explanation:
6 – 5 = 1
This is the example of a subtraction sentence
Story:
Mica has 6 apples and ate 5. how many are left?
6 – 5 = 1

Explore
9 – 3 = ___
Draw to show a story problem. Then solve.

9 – 3 = ___
Explanation:
9 – 3 = 6
Explanation:
Fruits in the basket are 9. 3 are strawberries the rest are plums. How many plums are in the basket?
Answer:
9 – 3 = 6
so, 6 are plums.

For The Teacher

• Have children tell a story problem using the subtraction fact, Then have them use two-color counters to solve the problem. Have them draw simple pictures to represent the story problem.
  Explanation:
  Fisherman catches 5 fishes in the net.5 fishes are sold. How many are in the net now.
  5 – 5 = 0
  This is a subtraction fact
  
  By using the color counters done the fraction facts.

Math Talk
Mathematical Processes
Tell your story problem to a classmate. How are your story problems alike?
Explanation:
He used the subtraction fact as 6 -6 = 0

Model and Draw

Write a story problem for the fact 5 – 3 = ___. Draw a picture to solve.

Answer:

Explanation:
Written a story problem for subtraction sentence.

Share and Show

Write a story problem for the subtraction fact. Draw a picture to solve.

Question 1.
12 – 5 = ___

Answer:

Explanation:
Written a story problem for subtraction sentence.

Problem Solving

Write a story problem for the subtraction fact. Draw a picture to solve.

Question 2.
H.O.T. 10 – __ = 6

Answer:

Explanation:
Written a story problem for subtraction sentence.

Question 3.
H.O.T. Multi-step ___ – ___ = 4

Answer:

Explanation:
Written a story problem for subtraction sentence.

Daily Assessment Task

Choose the correct answer.

Question 4.
Which subtraction fact matches the drawing?

(A) 10 – 6 = 4
(B) 6 – 5 = 1
(C) 11 – 6 = 5
Answer: C
Explanation:
11 – 6 = 5 matches the subtraction fact matches the drawing.

Question 5.
Which drawing matches the subtraction fact?
3 – 2 = ___

Answer:

Explanation:
Bubbled the correct drawing.

Question 6.
Use Tools Cara made this story problem for 9 – 7 = ___. 9 hens are in a barn. How many hens are in the barn now? Which sentence did Cara forget to write in the story problem?
(A) 7 hens join them.
(B) 7 hens fly out.
(C) 7 cows are in the barn.
Answer: B
Explanation:
9 – 7 =2. 9 hens are in a barn.
7 hens fly out. 2 hens are in the barn.

Question 7.
Texas Test Prep Which subtraction sentence matches the model?

(A) 9 – 6 = 3
(B) 6 – 3 = 3
(C) 9 – 3 = 6
Answer: B
Explanation:
6 -3 = 3 is the subtraction sentence matches the model

Take Home Activity

• Have your child draw o picture to solve 11 – 3. Then have him or her write a story problem for 11 – 3.

Texas Go Math Grade 1 Lesson 8.3 Homework and Practice Answer Key

Write a story problem for the subtraction fact. Draw a picture to solve.

Question 1.
16 – 7 = ___

Answer:

Explanation:
Written a story problem for subtraction sentence.

Problem Solving

Write a story problem for the subtraction fact. Draw a picture to solve.

Question 2.
___ – ___ = 8

Answer:

Explanation:
Written a story problem for subtraction sentence.

Texas Test Prep

Lesson Check

Choose the correct answer.

Question 3.
Which subtraction fact matches the drawing?

(A) 12 – 7 = 5
(B) 13 – 7 = 6
(C) 7 – 6 = 1
Answer: B
Explanation:
13 – 7 = 6
Matches the drawing

Question 4.
Which drawing matches the subtraction fact?
5 – 2 = ___

Answer:

Explanation:
Bubbled the correct match
5 – 3 = 2

Question 5.
Which subtraction fact matches the cubes?

(A) 6 – 3 = 3
(B) 9 – 3 = 6
(C) 9 – 6 = 3
Answer: C
Explanation:
9 – 6 = 3 matches the cubes

Question 6.
Write a story problem for the fact 16 – 9 Draw a picture to solve.

Answer:

Explanation:
Written a story problem for subtraction sentence.
16 – 9 = 7

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 8.4 Answer Key Solve Multi-Step Word Problems.

Texas Go Math Grade 1 Lesson 8.4 Answer Key Solve Multi-Step Word Problems

Essential Question
How can you solve multi-step word problems?
Explanation:
First find the value which is used to find the question.

Explore
Use or objects to model the problem. Draw the or objects. Write the numbers and the number sentences.

_______

_______
Explanation:
Kate had 7 birds and 4 were flied away. how many are with Kate now
7 – 4 = 3

Math Talk
Mathematical Processes
Explain the strategy you used to solve the multi-step problem. Is there another way to solve the problem?

For The Teacher

• Read the following problem. There are 11 crayons in the box. Pete takes 5 crayons. Jem takes 3 crayons. How many crayons are in the box?
  Explanation:
  first we have to add then to subtract
  5 + 3 = 8
  11 – 8 = 3
  3 Crayons are in the box.

Model and Draw

Eva has 5 red beads and 9 blue beads. She gives 5 blue beads to Lian. How many beads does Eva have?
Solve a step.

Solve a step. ____
Then use the answer to solve the next step. _____
Draw a picture.
__ beads

Tell a friend how you chose a strategy to solve the problem.
Explanation:
5 + 9 = 14
14 – 5 = 9
so Eva have 9 beads

Share and Show Math Board

Question 1.
Use to model the problem. Draw the . Gwen has 18 dolls. She gets 2 more. Then she gives 6 dolls to Mae. How many dolls does Gwen have?

_____ dolls
Tell a friend how you chose a ____ strategy to solve the problem.
Answer:

Explanation:
18 + 2 = 20
20 – 6 = 14
Gwen have 14 dolls

Problem Solving

Use to model the problem. Draw the .

Question 2.
H.O.T. Multi-Step Meg has a bowl of grapes. 7 grapes are red. 6 grapes are green. She eats all the green grapes. She eats 2 red grapes. How many grapes are left in the bowl?

Answer:

Explanation:
7 + 6 = 13
7 + 2 = 9
13 – 9 = 4 grapes are left in the bowl

Question 3.
H.O.T. Multi-Step Ellen puts peaches in a box. Then she gives 6 to Juan. She eats 1 peach. There are 8 peaches left in the box. How many peaches did Ellen start with?

Answer:

Explanation:
6 + 1 = 7
8 + 7 = 15
Ellen start with 15 peaches.

Question 4.
Multi-Step Choose a number between 10 and 20 to show the number of oranges Rick has. Then solve. Rick has ______ oranges. He gives 3 to Maria. He gives 5 to Paul. How many oranges does Rick have? How many oranges does Rick give away?
3 + 5 = ____
How many oranges does Rick have now?
___ – ___ = ____

Answer:

The number between 10 and 20 so, chose 15
Now rick has 15 oranges
3 + 5 = 8
15 – 8 = 7

Daily Assessment Task

Choose the correct answer.

Question 5.
Alex finds 4 berries. Alice finds 5 berries. They take the berries home. They eat 3 berries. How many berries are there now?

(A) 6
(B) 2
(C) 9
Answer: A
Explanation:
Alex finds 4 berries. Alice finds 5 berries.
4 + 5 = 9
They take the berries home. They eat 3 berries.
9 – 3 = 6

Question 6.
Use Tools There are 10 birds in a tree. 2 birds are blue. The rest are yellow. 1 yellow bird flies away. How many yellow birds are in the tree now?

(A) 9
(B) 8
(C) 7
Answer: C
Explanation:
There are total 10 birds,2 birds are Blue
10-2=8
8 are yellow,1 bird flew away so,
8-1=7

Question 7.
Multi-Step Maddy had 5 big cars. She had 7 small cars.
Maddy gave 3 small cars to her brother. How many cars does Maddy have now?

(A) 15
(B) 9
(C) 12
Answer: B
Explanation:
Maddy has 5 big cars and 7 small cars
5+7=12
she gave 3 small cars to her brother
5+4=9

Question 8.
Texas Test Prep Kendra has 4 brown rocks and 10 gray rocks. She gives 4 rocks to Amy. How many rocks does Kendra have?
(A) 14
(B) 7
(C) 10
Answer: C
Explanation:
Kendra has 4 brown rocks and 10 gray rocks
4+10=14
she gave 4 rocks to Amy
10-4=10

Take Home Activity

• Have your child explain how he or she solved the multi-step problem on this page.

Texas Go Math Grade 1 Lesson 8.4 Homework and Practice Answer Key

Draw to solve.

Question 1.
Multi-Step Ben has some apples. 9 are red apples. 7 are yellow apples. He gives all the yellow apples to Andy. He eats 1 red apple. How many apples does he have left?
__ apples
Answer:  15 apples are left

Explanation:
Ben has some apples. 9 are red apples. 7 are yellow apples.
9 + 7 = 16
He gives all the yellow apples to Andy. He eats 1 red apple.
16 – 15 = 1

Problem Solving

Draws to solve.

Question 2.
Multi-Step Choose a number between 10 and 18 to show the number of toy animals Marcy has. Then solve.
Marcy has ____ toy animals. She gives 6 to Leslie. She gives 4 to Beth.
How many toy animals does Marcy give away?
6 + 4 = ___
How many toy animals does Marcy have now?
___ – ___ = ___
____ toy animals
Answer:

2 toy animals
Explanation:
Marcy has 12 toy animals ,she gave 6 to Leslie and 4 to Beth
6+4=10
12-10=2
Marcy has 2 toy animals.

Texas Test Pre

Choose the correct answer.

Question 3.
Multi-Step Peter caught 4- fish. Edie caught 7 fish. Edie put 4- fish back in the pond. How many fish do they have now?
(A) 7
(B) 11
(C) 4
Answer: A
Explanation: peter caught 4 fish and caught 7 fish ,
Edie put 4 fish back in the bond 7-4=3
so now Edie has 3 fish and peter has 4 fish
3+4=7

Question 4.
Multi-Step Mike sees 12 frogs in a pond. 3 frogs are green. The rest are brown. 3 brown frogs hop away. How many brown frogs do they see in the pond now?
(A) 9
(B) 12
(C) 6
Answer: C
Explanation: mike sees 12 sees frogs in a pond , 3 frogs are green
12-3=9
9 frogs are brown,3 brown frogs hop away
9-3=6

Question 5.
Multi-Step Derek has 11 stickers. 6 stickers are car stickers. The rest are animal stickers. Derek buys 3 more animal stickers. How many animal stickers does Derek have now?
(A) 9
(B) 8
(C) 11
Answer: B
Explanation:
Derek has 11 stickers,6 stickers are car stickers
11-6=5
5 are animal stickers, He adds 3 more animal stickers
5+3=3

Question 6.
Multi-Step Laura has 8 red pencils and 6 green pencils. She gives 7 pencils to Dwayne. How many pencils does Laura have now? Write the number sentences. Explain the strategy you used to solve the problem.
Answer: Seven Pencils
Explanation:
Laura has 8 red pencils and 6 green pencils
eight red pencils + six green pencils = fourteen Pencils
She gives 7 pencils to Dwayne
fourteen pencils – seven pencils=Seven pencils

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Module 8 Assessment Answer Key.

Texas Go Math Grade 1 Module 8 Assessment Answer Key

Concepts and Skills

There are 15 children eating lunch.
____ children buy lunch.
____ children do not buy lunch.
Explanation:
8 children buy lunch.
7 children do not buy lunch.

Question 1.
Choose numbers to generate an addition story problem. Write the addition sentence to match the story problem. TEKS 1.3.F ____ ____ = 15
Answer:
15 children went to a picnic.8 bought lunch and 7 did not bought lunch
7 + 8 = 15
Explanation:
Written a story problem

Question 2.
Choose numbers to generate a subtraction story problem. Write the subtraction sentence to match the story problem. TEKS 1.3.F
15 ___ = ____
Answer:
15 children went to a picnic. Some bought lunch and 7 did not bought lunch
15 – 7 = 8
Explanation:
Written a story problem

Question 3.
Use or objects to model the problem. Draw the or objects. Kaelin has 9 stickers. She gets 2 more stickers. Then Kaelin gives away 4 stickers. How many stickers does she have now? Explain the strategy you used to
solve the problem. TEKS 1.3.E
____ stickers
Answer: 7 stickers
9 + 2 = 11
11 – 4 = 7
Explanation:
She has now 7 stickers.

Texas Test Prep

Choose the correct answer.

Question 4.
Which addition sentence matches the model? TEKS 1.3.F

(A) 4 + 3 = 7
(B) 8 + 4 = 12
(C) 9 + 2 = 11
Answer: B
Explanation:
8 + 4 = 12
Matches the addition fact.

Question 5.
Which subtraction sentence matches the model? TEKS 1.3.F

(A) 12 – 7 = 5
(B) 18 – 9 = 9
(C) 14 – 7 = 7
Answer: C
Explanation:
14 – 7 = 7
matches the subtraction sentence.

Question 6.
Michaela has 6 birds in the cage. There are 13 birds in the cage. How many birds do not belong to Michaela? TEKS 1.3.E
(A) 13 – 6 = 7
(B) 9 + 4 = 13
(C) 13 – 5 = 8
Answer: A
Explanation:
13 – 6 = 7
7 birds do not belong to Michaela

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Unit 2 Answer Key Number and Operations: Addition and Subtraction Strategies, Money.

Texas Go Math Grade 1 Unit 2 Answer Key Number and Operations: Addition and Subtraction Strategies, Money

Show What You Knów
Check your understanding of important skills.

Model Subtraction

Use to show each number.
Take away. Write how many are left.

Question 1.

Answer:

Explanation:
The difference of 5 and 2 is 3

Question 2.

Answer:

Explanation:
The difference of 3 and 1 = 2

Use Pictures to Subtract

Use the picture. Write the subtraction sentence.

Question 3.

Answer:

Explanation:
The difference of 6 and 2 is 4

Question 4.

Answer:

Explanation:
The difference of 4 and 1 is 3

Use Symbols to Subtract

Write how many are left.

Question 5.

Answer:

Explanation:
The difference of 3 and 0 is 3

Question 6.

Answer:

Explanation:
The difference of 4 and 4 is 0

Family Note:
This page checks your child’s understanding of important skills needed for success in Unit 2.

Vocabulary Builder

Visualize it

Complete the chart. Mark each row with a ✓.

Explanation:
The kid answered as the chart shows

Understand Vocabulary

Complete the sentences with review words.

Question 1.
3 is the ___ for 5 – 2 = 3.
Answer:  Difference
Explanation:
The difference of 5 and 2 is 3

Question 2.
7 – 4 = 3 is a ___.
Answer: Subtraction Sentence.
Explanation:
7 -4 = 3 is a subtraction sentence

Question 3.
You ___ to solve 5 – 1.
Answer: Take away
Explanation:
you have to take away 4 from 5 to get 1

Question 4.
You can ___ 2 from 6 .
Answer: Subtract
Explanation:
we can subtract 2 from 6
6 – 2 = 4

Vocabulary Reader

Friendship Soup
written by Mary Crobles
illustrated by Chris Simpson
This Take-Home Book belongs to

Reading and Writing Math
This take-home book will help you review addition facts through 12.

All summer the friends worked hard Growing yummy vegetables to eat. Planting, hoeing, watering, weeding Keeping garden rows nice and neat.

“Look at this,” cried Hen, seeing her tomatoes.
“Two on the left side and two on the right. Such beautiful tomatoes!
Shall I pick them? I might!”
___ + ___ = ____ tomatoes
2 + 2 = 4 Tomatoes

“Oh my,” cried Pig.
“Beans are ready to pick.
A week ago they were so little,
But look! They’ve grown so quick!”

How many beans on each plant?
How many in all?
____ + ____ = ____ in all
4 + 4 = 8 in all

Sheep dug up two potato plants,
“My potatoes look just right.
I dug up two hills of potatoes
And what a beautiful sight!”
____ + ____ = ____ in all
5 + 5 = 10 potatoes

“Oh my!” said Dog.
“Onions, big and round.
I don’t think nicer onions
Could be pulled out from the ground!”
___ + ___ = ___ in all
3 + 2 = 5 Onions

Cat was the last to notice
The garden had grown wide and tall.
She marveled to see orange pumpkins
Were the biggest veggie of all!

How many big and small pumpkins?
___ + -__ = ___ in all
6 + 6 = 12
6 big and 6 small pumpkins total = 12

Here are some of the many things the friends grew in their friendship garden. Color ¡n some of the groups of vegetables. Write an addition sentence to tell how you would add the groups.
___ + ___ = ___
10 + 7 = 17
Pees and tomatoes as one group
Pumpkins and potatoes as the second group
There are 17 in all

Write about Math
Write Math Look at the picture. Draw and write your own story about the number of friends and their tools.

Explanation:
There 5 friends and 5 tools
Each friend has 1 tool
5 + 5 = 10

How Many Vegetables?

Look at the picture. Complete the addition sentences.

Question 1.
How many pumpkins and onions are there?
__ + ___ = ____
Answer:
3 + 2 = 5
Explanation:
Three pumpkins and 2 onions total is 5

Question 2.
How many tomatoes and potatoes are there?
__ + ___ = ____
Answer:
4 + 5 = 9
Explanation:
4 tomatoes and 5 potatoes 9 in all

Question 3.
How many onions and tomatoes are there?
__ + ___ = ____
Answer:
4 + 2 = 6
4 onions and 2 tomatoes they are 6 in all

Math Board Write an addition story problem about vegetables in a garden. Have a classmate solve the problem.
Answer:
How many pumpkins and onions are there? and How many tomatoes and potatoes are there? and altogether how many vegetables are there
Explanation:
3 + 2 = 5
4 + 5 = 9
5 + 9 = 14 Vegetables in all

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Module 12 Assessment Answer Key.

Texas Go Math Grade 1 Module 12 Assessment Answer Key

Concepts and Skills

Add. Change the order of the addends. Add again. (TEKS 1.5.F)

Question 1.

Answer:

Question 2.

Answer:

Look at the . Complete the addition sentences showing two ways to find the sum. (TEKS 1.5.F, 1.5.G)

Question 3.

Answer: 3 + 4 + 5 = 12

Question 4.
Write the number sentence.
Maria has 3 cats. Jim has 2 cats. Cheryl has 5 cats. How many cats do they have? (TEKS 1.5.F, 1.5.G )

__________ + __________ + __________ = __________ cats
Answer: 3 + 2 + 5 = 10 cats

Choose the correct answer.

Question 5.
Pete sends 4 letters. Then he sends 3 more letters. Then he sends 2 more letters. How many letters did Pete send? (TEKS 1.5.F, 1.S.G)

(A) 7
(B) 6
(C) 9
Answer:
Given,
Pete sends 4 letters.
Then he sends 3 more letters.
Then he sends 2 more letters.
4 + 3 + 2 = 9
Thus the correct answer is option C.

Question 6.
Which shows the same addends in a different order? (TEKS 1.5.F)
7 + 6 = 13
(A) 8 + 6 = 14
(B) 6 + 7 = 13
(C) 9 + 6 = 15
Answer:
6 + 7 = 13
Thus the correct answer is option C.

Question 7.
What is the sum of 7 + 7 + 3? (TEKS 1.5.F, 1.5.G)
(A) 17
(B) 10
(C) 14
Answer: 17

Question 8.
What is the sum of 10 + 0 + 10? (TEKS 1.5.F, 1.5.G)
(A) 10
(B) 20
(C) 2
Answer: 20

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 11.1 Answer Key Model Addition.

Texas Go Math Grade 1 Lesson 11.1 Answer Key Model Addition

Unlock the Problem

Hanna has 4 red flowers in a .
She puts 2 more flowers in the .
How many flowers are in the ?
How can you use a model to find out?

Read

What information am I given?
__________ red flowers
__________ more flowers

Plan

What is my plan or strategy?
I can _____________

Solve

Show how you solve the problem.

Answer: 4 red flowers and 2 yellow flowers in the

HOME CONNECTION • Your child con model the concepts of joining, adding to, and putting together. He or she used a model to show the problems and solve.

Try Another Problem

Use to help you. Complete the model and the number sentence.

Question 1.
There are 7 dogs in the park. Then I more dog joins them. How many dogs are in the park now?

7 + 1 = ___________
Answer:
There are 7 dogs in the park. Then I more dog joins them.
7 + 1 = 8
8

Question 2.
Some birds are sitting in the tree. Four more birds sit in the tree. Then there are 9 birds. How many birds were in the tree before?

_________ + 4 = 9
Answer: 5
Some birds are sitting in the tree.
Four more birds sit in the tree.
Then there are 9 birds.
9 – 4 = 5

Question 3.
There are horses in the field. Some more horses run to the field. Now there are 10 horses in the field. How many horses ran to the field?

4 + _________ = 10
Answer:
There are horses in the field. Some more horses run to the field.
Now there are 10 horses in the field.
10 – 4 = 6

Math Talk
Mathematical Processes

How does a model help you solve Exercise 1? Explain
Answer:

Share and Show

Use to help you. Complete the model and the number sentence.

Question 4.
Luis has 12 crayons. 5 of the crayons are red. The rest are blue. How many crayons are blue?

5 + ________ = 12
Answer:
Given,
Luis has 12 crayons. 5 of the crayons are red.
12 – 5 = 7

Therefore 7 crayons are blue.

Problem Solving

Question 5.
H.O.T. Some ducks are swimming in a pond. 3 more ducks swim in the pond. Then there are 6 ducks in the pond. How many ducks were in the pond before?

__________ + 3 = 6
Answer:
Some ducks are swimming in a pond.
3 more ducks swim in the pond.
Then there are 6 ducks in the pond.
6 – 3 = 3

Thus there were 3 ducks in the pond before.

Question 6.
H.O.T. Multi-Step
_______ bugs are flying. _________ more bugs fly with them. Now there are 10 bugs flying.

Answer:
7 bugs are flying.
3 more bugs fly with them.
Now there are 10 bugs flying.

Daily Assessment Task

Use . Choose the correct answer.

Question 7.
Use Diagrams Cho sees 3 red flowers. Ki sees 2 yellow flowers. How many flowers are there?

(A) 5
(B) 3
(C) 2
Answer:
Given,
Cho sees 3 red flowers. Ki sees 2 yellow flowers.
3 + 2 = 5
Thus the correct answer is option A.

Question 8.
Ben has 5 books. Kelli has 3 books. Which number sentence shows how many books there are?

(A) 5 + 1 = 6
(B) 5 + 3 = 8
(C) 5 + 2 = 7
Answer:
Given,
Ben has 5 books. Kelli has 3 books.
5 + 3 = 8
Thus the correct answer is option B.

Question 9.
Multi-Step Some cats sit on a fence. 4 cats join them. Now there are 8 cats on the fence. How many cats were on the fence before?

(A) 3
(B) 2
(C) 4
Answer:
Given,
Some cats sit on a fence. 4 cats join them.
Now there are 8 cats on the fence.
8 – 4 = 4
Thus the correct answer is option C.

Question 10.
Texas Test Prep 6 bees are in the hive. 3 more bees fly into the hive. How many bees are in the hive now?

(A) 3
(B) 9
(C) 4
Answer:
Given,
6 bees are in the hive. 3 more bees fly into the hive.
6 + 3 = 9
Thus the correct answer is option B.

TAKE HOME ACTIVITY • Have your child describe each of the ports of a model using the number sentence 7 + 3 = 10.
Answer:

Texas Go Math Grade 1 Lesson 11.1 Homework and Practice Answer Key

Complete the model and number sentence.

Question 1.
There are 4 plates on the table. You put 3 more plates on the table. How many plates are on the table now?

4 + 3 = ___________
Answer:
Given,
There are 4 plates on the table. You put 3 more plates on the table.
4 + 3 = 7

Question 2.
8 fish swim in a pond. Some more fish swim into the pond. Now there are 11 fish in the pond. How many fish swam into the pond?

8 + _________ = 11
Answer:
Given,
8 fish swim in a pond. Some more fish swim into the pond.
Now there are 11 fish in the pond.
11 – 8 = 3

Problem Solving

Question 3.
Some bees are flying around a flower. 7 more bees fly with them. Now there are 13 bees flying. How many bees were flying before?

________ + 7 = 13
Answer:
Given,
Some bees are flying around a flower.
7 more bees fly with them.
Now there are 13 bees flying.
13 – 7 = 6

Thus there were 6 bees flying before.

Lesson Check

Choose the correct answer.

Question 4.
Jerry sees 5 blue cars. Tina sees 6 red cars. How many cars are there?

(A) 5
(B) 11
(C) 6
Answer:
5 + 6 = 11
Thus the correct answer is option B.

Question 5.
Cal has 7 pens. Zeb has 2 pens. Which number sentence shows how many pens there are?

(A) 7 + 2 = 9
(B) 7 – 2 = 5
(C) 7 + 1 = 8
Answer:
Given,
Cal has 7 pens. Zeb has 2 pens.
7 + 2 = 9
Thus the correct answer is option A.

Question 6.
Casey has some shells. Sal gives Casey 4 shells. Now Casey has 6 shells. How many shells did Casey have before?

(A) 4
(B) 6
(C) 2
Answer:
Given,
Sal gives Casey 4 shells. Now Casey has 6 shells.
4 + 2 = 6
Thus the correct answer is option C.

Question 7.
3 squirrels are in a tree. 5 more squirrels join them. How many squirrels are in the tree now?

(A) 8
(B) 7
(C) 9
Answer:
Given,
3 squirrels are in a tree. 5 more squirrels join them
3 + 5 = 8
Thus the correct answer is option A.

Refer to our Texas Go Math Grade 1 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 1 Lesson 11.2 Answer Key Model Addition.

Texas Go Math Grade 1 Lesson 11.2 Answer Key Model Subtraction

Unlock the Problem

Tom has 6 crayons in a box.
He takes 2 crayons out of the box.
How many crayons are in the box now? lip How can you use a model to find out?

Read

What information am I given?
___________ crayons in a box
___________ crayons taken out
Answer:
Tom has 6 crayons in a box.
He takes 2 crayons out of the box.

Plan

What is my plan or strategy?
I can ___________

Solve

Show how you solve the problem.

Answer:

HOME CONNECTION • Your child used a model to help him or her understand and solve the subtraction problem.
Answer:

Try Another Problem

Use to help you. Complete the model and the number sentence.

Question 1.
There are 10 stickers. 7 stickers are orange. The rest are brown. How many stickers are brown?

10 – 7 = ___________
Answer:
Given,
There are 10 stickers. 7 stickers are orange
10 – 7 = 3

Thus 3 stickers are brown.

Question 2.
Some birds were in the tree. 2 birds flew away. Then there were 6 birds. How many birds were in the tree before?

________ – 2 = 6
Answer:
Some birds were in the tree. 2 birds flew away. Then there were 6 birds.
6 + 2 = 8
Thus 8 birds were in the tree before

Question 3.
There were 5 cars. Some cars drove away. Then there was 1 car. How many cars drove away?

5 – ________ = 1
Answer:
Given,
There were 5 cars.
Some cars drove away.
Then there was 1 car.
5 – 1 = 4
Thus 4 cars drove away.

Math Talk
Mathematical Processes

What does each part of the model show? Explain.
Answer:

Share and Show

Use to help you. Complete the model and the number sentence.

Question 4.
Some goats were in the field. 3 goats ran away. Then there were 4 goats. How many goats were in the field before?

_________ – = 4
Answer:
Given,
Some goats were in the field.
3 goats ran away.
Then there were 4 goats.
3 + 4 = 7
Thus 7 goats were in the field before.

Problem Solving

Question 5.
H.O.T. Write your own story problem using the model.

Answer:

Question 6.
H.O.T. Multi-Step Complete the model. Write your own story problem using the model.

Answer:

Daily Assessment Task

Use . Choose the correct answer.

Question 7.
Use Diagrams Peg buys some bananas. Dan eats 3 bananas. Now there are 4 bananas left. How many bananas did Peg buy?

(A) 4
(B) 7
(C) 6
Answer:
Given,
Dan eats 3 bananas. Now there are 4 bananas left.
3 + 4 = 7
Thus the correct answer is option B.

Question 8.
Mari has 11 balloons. 6 balloons are blue. The rest are orange. How many balloons are orange?

(A) 5
(B) 6
(C) 11
Answer:
Given,
Mari has 11 balloons.
6 balloons are blue. The rest are orange.
6 + 5 = 11
Thus the correct answer is option A.

Question 9.
Marta had 7 grapes. She ate some, Now she has 3. Which number sentence shows how many grapes Marta ate?

(A) 7 – 5 = 2
(B) 7 – 6 = 1
(C) 7 – 4 = 3
Answer:
Given,
Marta had 7 grapes. She ate some, Now she has 3.
7 – 4 = 3
Thus the correct answer is option C.

Question 10.
Texas Test Prep There are 7 toy rockets. 4 toy rockets are red. The rest are black. How many toy rockets are black?

(A) 3
(B) 7
(C) 4
Answer:
Given,
There are 7 toy rockets.
4 toy rockets are red.
The rest are black.
4 + 3 = 7
Thus the correct answer is option A.

TAKE HOME ACTIVITY • Ask your child to describe what the bottom part of a model means when subtracting.
Answer:

Texas Go Math Grade 1 Lesson 11.2 Homework and Practice Answer Key

Complete the model and number sentence.

Question 1.
There are 9 cups. 3 cups are white. The rest are red. How many cups are red?

9 – 3 = _________
Answer:
Given,
There are 9 cups. 3 cups are white. The rest are red.
9 – 3 = 6
Thus 6 cups are red.

Question 2.
8 mice were playing. Some mice ran away. Then there were 2 mice. How many mice ran away?

8 – 2 = _________
Answer:
Given,
8 mice were playing. Some mice ran away. Then there were 2 mice.
8 – 2 = 6

Problem Solving

Question 3.
Multi Step Complete the model. Write your own story problem using the model.

Answer:
9 + 1 = 10

Lesson Check

Choose the correct answer.

Question 4.
Tad has 6 shirts. 2 shirts are white. The other shirts are blue. How many shirts are blue?

(A) 8
(B) 6
(C) 4
Answer:
Given,
Tad has 6 shirts. 2 shirts are white. The other shirts are blue.
4 + 2 = 6
Thus the correct answer is option C.

Question 5.
Tom had some pencils. He gave 7 pencils to friends. Now he has 3 pencils. How many pencils did Tom have?

(A) 10
(B) 4
(C) 5
Answer:
Given,
Tom had some pencils.
He gave 7 pencils to friends. Now he has 3 pencils.
7 + 3 = 10
Thus the correct answer is option A.

Question 6.
Pat had 9 apples. He used some to make a pie. Now he has 5 apples. Which number sentence shows how many apples Pat used?

(A) 9 – 7 = 2
(B) 9 – 4 = 5
(C) 9 – 6 = 3
Answer:
Given,
Pat had 9 apples.
He used some to make a pie.
Now he has 5 apples.
9 – 4 = 5
Thus the correct answer is option B.

Question 7.
11 bears are in the woods. 6 bears are black. The rest are brown. How many bears are brown?

(A) 7
(B) 6
(C) 5
Answer:
Given,
11 bears are in the woods. 6 bears are black. The rest are brown.
6 + 5 = 11
Thus the correct answer is option C.