We included **HMH Into Math Grade 2 Answer Key**** PDF** **Module 13 Develop Addition and Subtraction Fluency **to make students experts in learning maths.

## HMH Into Math Grade 2 Module 13 Answer Key Develop Addition and Subtraction Fluency

**Add and Subtract with Quick Pictures**

What numbers are represented by these quick pictures?

Answer:

42 and 56

Explanation:

Bar sticks represents tens and circles represent ones.

42 means 4 tens and 2 ones.

56 means 5 tens and 6 ones.

Write and solve an addition equation using the numbers from the quick pictures.

Answer:

Write and solve a subtraction equation using the numbers from the quick pictures.

42 + 56 = 98

Write and solve a subtraction equation using the numbers from the quick pictures.

56 – 42 = 14

**Turn and Talk**

How are quick pictures helpful when you are adding two-digit numbers?

Answer:

Quick pictures are the symbols or objects used in addition and subtraction to understand quickly.

Explanation:

22 + 36 = 58

36 – 22 = 14

**Are You Ready?**

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

**Mental Math**

**Use the hundred chart to solve the problems.**

Question 1.

30 + 60 = ___

Answer:

90

Explanation:

Using hundred chart

30 + 60 = 90

3 tens + 6 tens=9 tens

Question 2.

70 – 50 = ___

Answer:

20

Explanation:

Question 3.

90 – 20 = ____

Answer:

70

Explanation:

90 – 20 =70

**Addition Facts**

**Add to solve.**

Question 4.

8 + 6 = ____ ___ = 6 + 8

Answer:

8 + 6 = 14 = 6 + 8

Explanation:

Adding two or more numbers to find the sum is known as addition.

In additions addends can be added from left to right or right to left,

the sum will be same.

Question 5.

____ = 9 + 8 9 + 8 = _____

Answer:

17 = 9 + 8 9 + 8 = 17

Explanation:

Adding two or more numbers to find the sum is known as addition.

In additions addends can be added from left to right or right to left,

the sum will be same.

**Subtraction Facts**

**Subtract to solve.**

Question 6.

___ = 16 – 9; 16 – 7 = ____

Answer:

7 = 16 – 9; 16 – 7 = 9

Explanation:

subtraction fact is

to find the missing addend in the blow equation we should subtract the given addend from sum

sum is 16

one addend is 9

another addend is

16 – 9 = 7

16 – 7 = 9

Question 7.

18 – 9 = ___ ___ = 18 – 9

Answer:

18 – 9 = 9; 9 = 18 – 9

Explanation:

subtraction fact is

to find the missing addend in the blow equation we should subtract the given addend from sum

sum is 18

one addend is 9

another addend is

18 – 9 = 9

9 + 9 = 18