We included **HMH Into Math Grade 1 Answer Key**** PDF** **Module 4 Review **to make students experts in learning maths.

## HMH Into Math Grade 1 Module 4 Review Answer Key

**Concepts and Skill**

**Solve. Then circle the pairs that are related facts.**

Question 1.

6 + 5 = ___

11 – 5 = ___

Answer:

Explanation:

The three numbers used in the equations are same

So, the equations are related facts

I drew a circle around both the equations.

Question 2.

3 + 8 = __

8 – 3 = ___

Answer:

3 + 8 = 11

8 – 3 = 5

Explanation:

The three numbers used in the equations are not same

So, the equations are not related facts

I did not drew a circle around both the equations.

Question 3.

5 + 7 = ___

7 – 5 = ___

Answer:

5 + 7 = 12

7 – 5 = 2

Explanation:

The three numbers used in the equations are not same

So, the equations are not related facts

I did not drew a circle around both the equations.

Question 4.

9 + 6 = ___

15 – 9 = ___

Answer:

Explanation:

The three numbers used in the equations are same

So, the equations are related facts

I drew a circle around both the equations.

**Complete the related facts. Use if you need to.**

Question 5.

5 + 9 = ___ 14 – 9 = ____

9 + __ = 14 ___ – ___ = ___

Answer:

Explanation:

I used cubes to show the addition equations 5 + 9 = 14 and 9 + 5 = 14

The related facts of 5 + 9 = 14 are

14 – 9 = 5

9 + 5 = 14

14 – 5 = 9.

**Write an addition equation to help you subtract.**

Question 6.

What is 12 – 4?

___ + ___ = ___

So, 12 – 4 = ___

Answer:

4 + 8 = 12

So, 12 – 4 = 8

Explanation:

12 – 4 =

The addition equation that solve the problem is

4 + 8 = 12

So, 12 – 4 = 8

The difference of 12 and 4 is 8.

Question 7.

What is 16 – 9?

___ + ___ = ___

So, 16 – 9 = ___

Answer:

9 + 7 = 16

So, 16 – 9 = 7

Explanation:

16 – 9 = 7

The addition equation that solve the problem is

9 + 7 = 16

So, 16 – 9 = 7

The difference of 16 and 9 is 7.

**Use subtraction to find the unknown addend.**

Question 8.

Solve 7 + = 16

___ – ___ = ___

7 + ___ = 16

Answer:

16 – 7 = 9

7 + 9 = 16

Explanation:

7 + = 16

The subtraction equation that solve the problem is

16 – 7 = 9

So, 7 + 9 = 16

The sum of 7 and 9 is 16.

**Write a related subtraction fact to solve.**

Question 9.

Teresa has 8 yellow flowers. The rest of her flowers are red. She has 14 flowers altogether. How many red flowers does she have?

8 + = 14

___ – ___ = ___

8 + ___ = 14 __ red flowers

Answer:

14 – 8 = 6

8 + 6 = 14

6 red flowers

Explanation:

Teresa has 8 yellow flowers

The rest of her flowers are red

She has 14 flowers altogether

8 + _ = 14

The related subtraction equation is

14 – 8 = 6

So, 8 + 4 = 14

There are 4 red flowers.

**Fill in the bubble next to the correct answer.**

Question 10.

Which is the difference?

A. 5

B. 6

C. 11

Answer:

A. 5

Explanation:

8 – 3 =

Start at 3 count on till 8

3 after4, 5, 6, 7, 8

I counted 5 ones

So, 8 – 3 = 5.

Question 11.

Which addition equation can be used to check the answer to 15 – 7 = ?

A. 7 + 1 = 8

B. 6 + 9 = 15

C. 7 + 8 = 15

Answer:

C. 7 + 8 = 15

Explanation:

The related facts will always have the same three numbers

15 – 7 =

Make 10:

15 – 7

= 15 – 5 – 2

= 10 -2

= 8

15 – 7 = 8

The equation 7 + 8 = 15 ahs the same numbers as the equation 15 – 7 = 8

So, the equation 7 + 8 = 15 is the addition equation that can be used to check the answer of 15 – 7 = 8.