All the solutions provided in **McGraw Hill My Math Grade 2 Answer Key PDF**** Chapter 3 Review **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Chapter 3 Review Answer Key

**Vocabulary Check**

**Draw lines to match.**

Answer:

Explanation:

The result of addition is called sum

When the ones place is more than 9

Then we have to regroup.

**Concept Check**

**Take apart an addend to solve.**

Question 4.

Answer:

Explanation:

The place of addends may change but the sum will not change

Question 5.

Answer:

Explanation:

The place of addends may change but the sum will not change

**Add.**

Question 6.

Answer:

Explanation:

**Ones** Place Value

4 + 7 = 11

Put the 1 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 3 + 2 = 6

Put the 6 in Tens place

Question 7.

Answer:

Explanation:

**Ones** Place Value

3 + 8 = 11

Put the 1 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 4 + 2 = 7

Put the 7 in Tens place

Question 8.

Answer:

Explanation:

**Ones** Place Value

5 + 7 = 12

Put the 2 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 1 + 3 = 5

Put the 5 in Tens place

Question 9.

Answer:

Explanation:

**Ones** Place Value

1 + 8 = 9

Put the 9 in Ones place

**Tens** Place Value

1 + 1 = 2

Put the 2 in Tens place

Question 10.

Answer:

Explanation:

**Ones** Place Value

5 + 3 = 8

Put the 8 in Ones place

**Tens** Place Value

1 + 7 = 8

Put the 8 in Tens place

Question 11.

Answer:

Explanation:

**Ones** Place Value

8 + 3 = 11

Put the 1 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 2 + 6 = 9

Put the 9 in Tens place

Question 12.

Answer:

Explanation:

**Ones** Place Value

6 + 6 = 12

Put the 2 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 3 + 3 = 7

Put the 7 in Tens place

Question 13.

Answer:

Explanation:

**Ones** Place Value

6 + 5 = 11

Put the 1 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 2 + 4 = 7

Put the 7 in Tens place

Question 14.

Answer:

Explanation:

**Ones** Place Value

2 + 6 = 8

Put the 8 in Ones place

**Tens** Place Value

3 + 1 = 4

Put the 4 in Tens place

Question 15.

Answer:

Explanation:

**Ones** Place Value

3 + 7 + 0 = 10

Put the 0 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 2 + 1 + 3 = 7

Put the 7 in Tens place

Question 16.

Answer:

Explanation:

**Ones** Place Value

2 + 2 + 0 = 4

Put the 4 in Ones place

**Tens** Place Value

5 + 2 + 2 = 9

Put the 9 in Tens place

Question 17.

Answer:

Explanation :

**Ones** Place Value

6 + 2 + 4 = 12

Put the 2 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 1 + 1 + 2 = 5

Put the 5 in Tens place

Question 18.

Answer:

Explanation:

**Ones** Place Value

6 + 5 + 4 + 1 = 16

Put the 6 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 1 + 2 + 4 + 1 = 9

Put the 9 in Tens place

Question 19.

Answer:

Explanation:

**Ones** Place Value

7 + 7 + 3 + 0 = 17

Put the 7 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 5 + 1 + 1 + 1 = 9

Put the 9 in Tens place

Question 20.

Answer:

Explanation:

**Ones** Place Value

1 + 3 + 3 + 6 = 13

Put the 3 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 2 + 1 + 1 + 1 = 6

Put the 6 in Tens place

**Problem Solving**

Question 21.

Kaylee sold 35 raffle tickets. Chloe sold 27 and Noah sold 33. How many raffle tickets did they sell in all?

____ tickets

Answer:

95 tickets

Explanation:

**Ones** Place Value

5 + 7 + 3 = 15

Put the 5 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 3 + 2 + 3 = 9

Put the 9 in Tens place

Question 22.

Peyton has 13 marbles. She finds 11 more marbles. How many marbles does Peyton have in all?

____ marbles

Answer: 24 marbles

Explanation:

**Ones** Place Value

3 + 1 = 4

Put the 4 in Ones place

**Tens** Place Value

1 + 1 = 2

Put the 2 in Tens place

Question 23.

Dylan ate 18 grapes. Evan ate 12 grapes. Layla ate 14 grapes. Hailey ate 13 grapes. How many grapes were eaten?

____ grapes

Answer:

57 grapes

Explanation:

**Ones** Place Value

8 + 2 + 4 + 3 = 17

Put the 7 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 1 + 1 + 1 + 1 = 5

Put the 5 in Tens place

**Test Practice**

Question 24.

The red team has 20 boys, the blue team has 19 boys, the green team has 19 boys, and the yellow team has 20 boys. How many boys are there in all?

(A) 80

(B) 78

(C) 59

(D) 58

Answer:

B

Explanation:

**Ones** Place Value

0 + 9 + 9 + 0 = 18

Put the 8 in Ones place

Carry the 1 to Tens place

**Tens** Place Value

1 + 2 + 1 + 1 + 2 = 7

Put the 7 in Tens place

**Reflect**

**Show the ways you can add to solve problems.**

Add the ones. Regroup if needed.

Explanation:

Add the ones. Regroup if needed. Add the tens.

Explanation:

**Essential Question?**

How can I add two-digit numbers?

Add the ones. Regroup if needed. Add the tens.

Explanation:

Add the ones. Regroup if needed. Add the tens.

Explanation: