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:
