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

## HMH Into Math Grade 1 Module 4 Answer Key Addition and Subtraction Relationship

**Birth Nest Math**

Find each unknown sum or difference. Write a sum on the nest. Write a difference on the bird.

Answer:

Explanation:

I wrote the sum on the nest and the difference on the bird.

I colored the sums

I colored the rest that is the differences

If both birds show doubles, I colored them

Colour the sums If both birds show doubles, color them Color the rest of the birds

**Turn and Talk**

What strategies did you use? Give an example to explain.

**Are You Ready?**

**Complete these problems to review prior concepts and skills you will need for this module.**

**Add Within 5**

**Use to show the equation. Color to match. Write the sum.**

Question 1.

Answer:

Explanation:

I used red and blue cubes to show the equations

To show 2 + 3

I colored 2 cubes red and 3 cubes blue

To show 3 + 2

I colored 3 cubes red and 2 cubes blue

So, 2 + 3 = 3 + 2 = 5.

**Count On
**

**Count on to add. Write the sum.**

Question 2.

6 + 1 = ___

Answer:

6 + 1 = 7

Explanation:

Start at 6. Count on 1 more

6, 7

So, 6 + 1 = 7.

Question 3.

7 + 2 = ___

Answer:

7 + 2 = 9

Explanation:

Start at 7. Count on 2 more

7, 8, 9

So, 7 + 2 = 9

Question 4.

9 + 3 = ___

Answer:

9 + 3 = 12

Explanation:

Start at 9. Count on 3 more

9, 10, 11, 12

So, 9 + 3 = 12.

**Count Back**

**Count back to subtract. Write the difference.**

Question 5.

7 – 3 = ___

Answer:

7 – 3 = 4

Explanation:

Start at 7

Count back 3

7, 6, 5, 4

I reached at 4

So, 7 – 3 = 4.

Question 6.

11 – 2 = __

Answer:

11 – 2 = 9

Explanation:

Start at 11

Count back 2

11, 10, 9

I reached at 9

So, 11 – 2 = 9.

Question 7.

8 – 1 = ___

Answer:

8 – 1 = 7

Explanation:

Start at 8

Count back 1

8 , 7

I reached at 7

So, 8 – 1 = 7.