All the solutions provided in McGraw Hill Math Grade 2 Answer Key PDF Chapter 3 Lesson 1 Take Apart Tens to Add will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 2 Answer Key Chapter 3 Lesson 1 Take Apart Tens to Add
Explore and Explain
Teacher Directions: Use base-ten blocks. Show 48 in the red box. Show 16 in the yellow box. Move some base-ten blocks from the yellow box to the red box to make 50. Write the number shown in each box. Write the number sentence.
Explanation:
See and Show
Numbers that end in zero are easier to add. Take apart addends to make numbers that end in zero.
Find 28 + 36.
One Way:
Take apart 36 as 2 + 34.
Then make 28 + 2 into 30.
Another way:
Take apart 28 as 24 + 4.
Then make 4 + 36 into 40.
So, 28 + 36 = 64
Take apart an addend to solve.
Question 1.
Answer: 53
Explanation:
The Sum of 18 and 35 is 53
Question 2.
Answer:
Explanation:
The Sum of 44 and 26 is 70
Talk Math
How do you decide which addend to take apart when adding?
On My Own
Take apart an addend to solve.
Question 3.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Question 4.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Question 5.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Question 6.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Problem Solving
Question 7.
28 people came to the bake sale in the morning. 34 people came to the bake sale in the afternoon. How many people came to the bake sale?
____ people
Answer:
62 people
Explanation:
28 people came to the bake sale in the morning.
34 people came to the bake sale in the afternoon.
28 + 34 = 62
62 people came to the bake sale
Question 8.
Bill collected 16 toys for the toy drive. Lisa collected 37 toys. How many toys did Bill and Lisa collect in all?
____ toys
Answer:
53 toys
Explanation:
Bill collected 16 toys for the toy drive.
Lisa collected 37 toys.
37 + 16 = 53
53 toys that Bill and Lisa collect in all
Write Math
Explain how you would find 65 + 18 by taking apart an addend.
Explanation:
65 + 18
can also written as 63 + 2 + 18
63 + 2 + 18
63 + 20 = 83
McGraw Hill My Math Grade 2 Chapter 3 Lesson 1 My Homework Answer Key
Practice
Take apart an addend to solve.
Question 1.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Question 2.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Take apart an addend to solve.
Question 3.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Question 4.
Answer:
Explanation:
The places of the addends may change but the sum will not change.
Question 5.
There were 38 winter hats and 36 scarves donated to a clothing drive. How many hats and scarves were donated in all?
Answer:
74 hats and scarves were donated in all
Explanation:
There were 38 winter hats and 36 scarves donated to a clothing drive.
38 + 36 = 74
Test Practice
Question 6.
How could you take apart 18 + 36 to find the sum?
18 + 36 = _____
(A) 9 + 9 + 36
(B) 18 + 2 + 34
(C) 1 + 8 + 36
(D) 18 + 3 + 6
Answer:
B
Explanation:
18 + 2 + 34
18 + 2 = 20
20 + 34 = 54
18 + 36 = 54
Math at Home Ask your child to solve 49 + 13 by taking apart an addend.
Explanation:
49 + 13 can also written as 49 + 1 + 12
49 + 1 = 50
50 + 12 = 62