We included **HMH Into Math Grade 1 Answer Key PDF** **Module 12 Review **to make students experts in learning maths.

## HMH Into Math Grade 1 Module 12 Review Answer Key

**Vocabulary**

Question 1.

What is an equation? Show an example.

Answer:

An equation is an equality relationship between two expressions written on both sides of the equal to sign

Examples:

2 + 3 = 5

6 + 8 = 14.

**Concepts and Skills**

Use the hundred chart to solve.

Question 2.

Carlos has 15 toy trains. Marcel has 9 toy trains. How many toy trains do they have altogether?

Equation: ___________

___________ toy trains

Answer:

Explanation:

Carlos has 15 toy trains

Marcel has 9 toy trains

15 + 9

I used hundreds chat to solve the problem

I started counting at 15, i colored the number 15

Count by 1’s, color and count 9 more

I reached at the number 24

So, 15 + 9 = 24

They have 24 toy trains all together.

**Make a ten to solve. Show your work.**

Question 3.

There are 18 children at the beach. Then 5 more children come to the beach. How many children are at the beach now?

Equation: ___________

____________ children

Answer:

18 + 5 = 23

23 children

Explanation:

There are 18 children at the beach

Then 5 more children come to the beach

Start at 18

Make 10:

18 + 5 =

= 18 + 2 + 3

= 20 + 3

= 23

So, 18 + 5 = 23

There are 23 children at the beach now.

**Write the numbers that are 10 less and 10 more.**

Question 4.

___________ 75 ___________

Answer:

Explanation:

I counted back and forth by 10’s

So, 65 and 85 are the numbers that are 10 less and 10 more than 75.

Question 5.

____________ 12 ___________

Answer:

Explanation:

I counted back and forth by 10’s

So, 2 and 22 are the numbers that are 10 less and 10 more than 12.

**Draw tens to show the problem. Write an equation to solve.**

Question 6.

Fran has 50 marbles. She gives Caitlyn 20 marbles. How many marbles does Fran have now?

Equation: ____________

Fran has _________ marbles.

Answer:

Explanation:

Fran has 50 marbles

She gives Caitlyn 20 marbles

I drew tens to show the sum

I drew 5 tens and 2 more tens

5 tens + 2 tens = 7 tens

So, 50 + 20 = 70

Farn has 70 marbles.

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

Question 7.

What 13 + 5?

(A) 33

(B) 36

(C) 39

Answer:

The options does not have the correct answer

13 + 5

The answer is 18

Question 8.

What is 20 + 40?

(A) 20

(B) 60

(C) 70

Answer:

(B) 60

Explanation:

20 + 40 =

Start at 20 count more 4 tens

So, 2 tens + 4 tens = 6 tens

20 + 40 = 60.

**Write an equation to solve.**

Question 9.

There are 20 green apples and 30 red apples. How many apples are there?

Equation: ____________

_________ apples

Answer:

20 + 30 = 50

50 apples

Explanation:

There are 20 green apples and 30 red apples

20 + 30 =

Start at 30, count by 10’s 2 times

30 after 40, 50

30 + 20 = 50

So, 20 + 30 = 50

There are 50 apples in all.

**Make a ten to solve. Write the numbers.**

Question 10.

There are 16 flavors of fruit pops. 9 more flavors are added. How many flavors are there now?

Equation: ___________

__________ flavors

Answer:

Explanation:

There are 16 flavors of fruit pops

9 more flavors are added

16 + 9 = 25

There are 25 flavors in all.