We included **HMH Into Math Grade 1 Answer Key PDF** **Module 13 Review **to make students experts in learning maths.

## HMH Into Math Grade 1 Module 13 Review Answer Key

**Concepts and Skills**

**Add or subtract to solve.**

Question 1.

40 + 25 = ___________

Answer:

Explanation:

I drew 4 tens and 2 tens 5 ones

There are 6 tens 5 ones

40 + 25 = 65

The sum of 40 and 25 is 65.

Question 2.

50 – 30 = ___________

Answer:

Explanation:

I drew 5 tens and took away 3 tens

50 – 30 = 20

The difference of 50 and 30 is 20.

Question 3.

20 + 46 = ___________

Answer:

Explanation:

I drew 2 tens and 4 tens 6 ones

There are 6 tens 6 ones

So, 20 + 46 = 66

The sum of 20 and 46 is 66.

Question 4.

90 – 50 = ___________

Answer:

Explanation:

I drew 9 tens and took away 5 tens

90 – 50 = 40

The difference of 90 and 50 is 40.

Question 5.

Answer:

Explanation:

The sum of 65 and 22 is 87

65 + 22 = 87.

Question 6.

Answer:

Explanation:

The sum of 40 and 49 is 89

40 + 49 = 89.

Question 7.

Answer:

Explanation:

The difference of 80 and 30 is 50

80 – 30 = 50.

Question 8.

Answer:

Explanation:

The sum of 53 and 38 is 91

58 + 38 = 91.

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

Question 9.

Koya has 58 red buttons and 8 blue buttons. How many buttons does she have?

(A) 66 buttons

(B) 57 buttons

(C) 56 buttons

Answer:

(A) 66 buttons

Explanation:

Koya has 58 red buttons and 8 blue buttons

58 + 8 =

Start at 58 and count 8 more

I reach at 66

So 58+ 8 = 66

There are 66 buttons with Koya.

Question 10.

There are 12 jars of peanuts on a shelf. Mr. Grace buys 3 of them. How many jars of peanuts are on the shelf now?

(A) 11 jars

(B) 10 jars

(C) 9 jars

Answer:

(C) 9 jars

Explanation:

There are 12 jars of peanuts on a shelf

Mr. Grace buys 3 of them

12 -3 =

Make ten to subtract

12 – 2 – 1

=10 -1 = 9

So, 12 – 3 = 9

3 jars of peanuts are on the shelf now.

Question 11.

Delaney has 80 marbles. She gives 20 marbles to her friend. How many marbles does Delaney have now?

(A) 90 marbles

(B) 70 marbles

(C) 60 marbles

Answer:

(B) 70 marbles

Explanation:

Delaney has 80 marbles

She gives 20 marbles to her friend

Subtract 20 from 80 to find the answer

Start at 80 count back by 10’s 2 times

80 before 70 , 60

80 – 20 = 60

So, Delaney have 60 marbles now.

Question 12.

Sara swims 24 laps. Then she swims 25 more laps. How many laps does she swim?

(A) 49 laps

(B) 43 laps

(C) 37 laps

Answer:

(A) 49 laps

Explanation:

Sara swims 24 laps

Then she swims 25 more laps

Add 24 and 25 to find total

2 tens 4 ones + 2 tens 5 ones = 4 tens 9 ones

So, 24 + 25 = 49

So, Sara swims 49 laps in all.

**Use the hundred chart to solve.**

Question 13.

Beth counts 54 peaches. Don counts some peaches. They count 74 peaches in all. How many peaches does Don count?

_________ peaches

Answer:

Explanation:

Beth counts 54 peaches

Don counts some peaches

They count 74 peaches in all

74 – 54 =

Start at 74 count back by 10’s

74 before 64, 54

I counted 2 tens

So, 74 – 54 = 20

Don counts 20 peaches.

**Add or subtract.**

Question 14.

16 – 7 = _________

Answer:

16 – 7 = 9

Explanation:

Make ten to subtract:

16 – 7

= 16 – 6 – 1

= 10 – 1

= 9

So, 16 – 7 = 9.

Question 15.

8 + 5 = ___________

Answer:

8 + 5 = 13

Explanation:

Start at 8 count 5 more

8 after 9, 10, 11, 12, 13

So, 8 + 5 = 13.

Question 16.

6 + 9 = ___________

Answer:

6 + 9 = 15

Explanation:

Start at 9

Count 6 more

9 after 10, 11, 12, 13, 14, 15

So, 6 + 9 = 15.

Question 17.

14 – 8 = ___________

Answer:

14 – 8 = 6

Explanation:

Start at 14

Count back by 1’s till 8

14 before 13, 12, 10, 11, 10, 9, 8

I counted 6 numbers back

So, 14 – 8 = 6.