# McGraw Hill My Math Grade 2 Chapter 3 Lesson 3 Answer Key Add to a Two-Digit Number

All the solutions provided in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 3 Add to a Two-Digit Number will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 3 Lesson 3 Add to a Two-Digit Number

Explore and Explain Teacher Directions: Use base-ten blocks to show this addition story. Morgan and her friends are collecting newspapers to recycle. One group collects 7 newspapers. The other group collects 15 newspapers. How many newspapers have they collected in all? Write the number.
Explanation: See and Show

Find 17 + 5.
Step 1
7 + 5 = 12 ones Step 2
Regroup if needed. Write how many. Step 3
Add the tens. 1 ten + 1 ten = 2 tens Use Work Mat 6 and base-ten blocks to add.

Question 1.  Explanation:
The sum of 18 and 6 is 24
18 + 6 = 24

Question 2.  Explanation:
The sum of 43 and 3 is 46
43 + 3 = 46

Question 3.  Explanation:
The sum of 19 and 6 is 25
19 + 6 = 25

Question 4.  Explanation:
The sum of 36 and 5 is 41
36 + 5 = 41

Question 5.  Explanation:
The sum of 14 and 9 is 23
14 + 9 = 23

Talk Math How did you show that you regrouped?
The places of ones will be changed to tens.

On My Own

Use Work Mat 6 and base-ten blocks to add.

Question 6.  Explanation:
The sum of 56 and 1 is 57
56 + 1 = 57

Question 7.  Explanation:
The sum of 72 and 8 is 80
72 + 8 = 80

Question 8.  Explanation:
The sum of 38 and 8 is 46
38 + 8 = 46

Question 9.  Explanation:
The sum of 24 and 4 is 28
24 + 4 = 28

Question 10.  Explanation:
The sum of 43 and 9 is 52
43 + 9 = 52

Question 11.  Explanation:
The sum of 13 and 7 is 20
13 + 7 = 20

Question 12.  Explanation:
The sum of 51 and 9 is 60
51 + 9 = 60

Question 13.  Explanation:
The sum of 17 and 6 is 23
17 + 6 = 23

Question 14.  Explanation:
The sum of 38 and 4 is 42
38 + 4 = 42

Question 15.  Explanation:
The sum of 33 and 7 is 40
33 + 7 = 40

Question 16.  Explanation:
The sum of 22 and 9 is 31
22 + 9 = 31

Question 17.  Explanation:
The sum of 68 and 3 is 71

Problem Solving

Question 18.
Jaya has 25 stickers on her paper. She adds 4 more stickers. How many stickers does Jaya have now? ____ stickers
29 stickers
Explanation:
Jaya has 25 stickers on her paper.
25 + 4 = 29
29 stickers that Jaya have now.

Question 19.
Micah does 19 cartwheels. Then he does 8 more. How many cartwheels does Micah do altogether? 27  cartwheels
Explanation:
Micah does 19 cartwheels.
Then he does 8 more.
19 + 8 = 27
27  cartwheels that Micah have altogether.

Question 20.
13 children are waiting for the bus. 5 more children get in line for the bus. How many children are waiting for the bus now?
_____ children
18 children
Explanation:
13 children are waiting for the bus.
5 more children get in line for the bus.
13+ 5 = 18
18 children are waiting for the bus now.

Write Math Explain how you can solve 14 + 7.
Explanation:
14 + 7 = 21
The sum of 14 and 7 is 21.

### McGraw Hill My Math Grade 2 Chapter 3 Lesson 3 My Homework Answer Key

Practice

Question 1.  Explanation:
The sum of 66 and 6 is 72
66 + 6 = 72

Question 2.  Explanation:
The sum of 84 and 3 is 87
84 + 3 = 87

Question 3.  Explanation:
The sum of 29 and 4 is 33
29 + 4 = 33

Question 4.  Explanation:
The sum of 37 and 9 is 46
37 + 9 = 46

Question 5.  Explanation:
The sum of 21 and 9 is 30
21 + 9 = 30

Question 6.  Explanation:
The sum of 45 and 6 is 51
45 + 6 = 51

Question 7.  Explanation:
The sum of 38 and 3 is 41
38 + 3 = 41

Question 8.  Explanation:
The sum of 78 and 7 is 85
78 + 7 = 85

Question 9.  Explanation:
The sum of 83 and 8 is 91
83 + 8 = 91

Question 10.
There are 24 students in Ms. Ito’s class. 5 more students join her class. How many students are there now?
_______ students
29 students
Explanation:
There are 24 students in Ms. Ito’s class.
5 more students join her class.
24 + 5 = 29
29 students are there now. Question 11.
Harry coaches 25 children on Wednesday. On Saturday, he coaches 9 more children. How many children does he coach in all?
_____ children
34 children
Explanation:
Harry coaches 25 children on Wednesday.
On Saturday, he coaches 9 more children.

25 + 9 = 34
34 children that he coach in all.

Question 12.
There are 54 people that arrive early for the Tigers’ game. 9 people arrive late. How many people came to the game?
(A) 63
(B) 52
(C) 44
(D) 20