We included HMH Into Math Grade 2 Answer Key PDF Module 12 Review to make students experts in learning maths.

Vocabulary

Question 1.
Draw a picture to show what the word regroup means.
Regrouping is a process of making groups of tens when carrying out operations like addition or subtracting with 2-digit numbers.

Concepts and Skills

Solve. Regroup if you need to.

Question 2.
There are 36 blue chairs and 49 red chairs in the cafeteria. How many chairs are there?

________ chairs
Given,
There are 36 blue chairs and 49 red chairs in the cafeteria.
36 + 49 = 85

Fill in the bubble next to the correct answer.

Question 3.
For which problem will you need to regroup 10 ones as 1 ten?

16 + 78 = 94 need to regroup 10 one as 1 ten.

Question 4.
For which problem will you need to regroup 1 ten as 10 ones?

54 – 38 = 16 need to regroup 1 ten as 10 ones.

Question 5.
Add 73 and 17. Regroup if you need to.

73 + 17 need to regroup 10 one as 1 ten.

Question 6.
Subtract 31 from 82. Regroup if you need to.

Subtract 31 from 82 we get 51.

There is no need to regroup 1 ten as 10 ones

Question 7.
Complete the sentences to explain the addition you did in Problem 5.
I regrouped 3 ones and 7 ones as ______ ten ________ ones.