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.