All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 6 Lesson 3 Add Tens and Ones will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 6 Lesson 3 Add Tens and Ones
Explore and Explain
Teacher Directions: Use 
and 
to model. There are 24 children in a swimming pool. 3 more children get in. How many children are in the pool in oil? Draw the rods and units you used. Write the numbers. Explain to a classmate how you found the answer.
Answer:
Explanation:
I used and to model
24 + 3
Add ones
4 + 3 = 7
So, 24 + 3 = 27.
See and Show
To find 25 + 2, add the ones. Then add the tens
Step1:
Show each number.
Step 2:
Add the ones.
Step 3:
Add the tens.
Helpful Hint
Add the ones.
5 ones + 2 ones = 7 ones
The sum is 2 tens and 7 ones or 27.
Use Work Math 7 and and . Add.
Question 1.
Answer:
Explanation:
13 + 4
Add ones
3 ones + 4 ones = 7 ones
1 tens and 7 ones is 17
So, 13 + 4 = 17
Question 2.
Answer:
Explanation:
6 + 40
Add ones
6 ones + 0 ones = 6 ones
4 tens and 6 ones = 46
So, 6 + 40 = 46.
Question 3.
Answer:
Explanation:
6 + 53
Add ones
6 ones + 3 ones = 9 ones
5 tens and 9 ones = 59
So, 6 + 53 = 59.
Talk Math Explain how you add tens and ones.
Answer:
We can add tens and ones by converting the tens to ones.