# McGraw Hill My Math Grade 1 Chapter 6 Check My Progress Answer Key

All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 6 Check My Progress will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Chapter 6 Check My Progress Answer Key

Check My Progress Page No. (477 – 478)

Vocabulary Check

Complete each sentence.
subtracting
sum

Question 1.
By ______________ two numbers together, you can find the sum.
By adding two numbers together, you can find the sum.

Question 2.

Concept Check

Question 3.
3 tens – 2 tens = _____________ tens
30 – 20 = _____________ Explanation:
3 tens – 2 tens = 1 ten
30 – 20 = 10.

Question 4.
4 tens + 4 tens = _____________ tens
40 + 40 = _____________ Explanation:
4 tens + 4 tens = 8 tens
40 + 40 = 80.

Question 5. 67 + 1 = ______________ Explanation:
67 + 1 =
7 + 1 = 8
So, 67 + 1 = 68.

Question 6. 75 + 3 = _______________ Explanation:
75 + 3 =
5 + 3 = 8
So, 75 + 3 = 78.

Question 7.  Explanation:
35 + 4 =
5 + 4 = 9
35 + 4 = 39
So, the sum of 35 and 4 is 39.

Question 8.  Explanation:
52 + 7 =
2 + 7 = 9
52 + 7 = 59
So, the sum of 52 and 7 is 59.

Question 9.  Explanation:
84 + 5 =
4 + 5 = 9
84 + 5 = 89
So, the sum of 84 and 5 is 89.

Question 10.
16 + 8 = ____________  Explanation:
Count ones
Circle 10 ones
Regroup 10 ones as 1 ten
Move the ones to tens column
2 tens  4 ones = 24
So, 16 + 8 = 24.

Question 11.
14 + 8 = _____________  Explanation:
Count ones
Circle 10 ones
Regroup 10 ones as 1 ten
Move the ones to tens column
2 tens  2 ones = 22
So, 14 + 8 = 22.

Question 12.
18 + 9 = _____________  Explanation:
Count ones
Circle 10 ones
Regroup 10 ones as 1 ten
Move the ones to tens column
2 tens  7 ones = 27
So, 18 + 9 = 27.

Test Practice

Question 13.
Dalton swam 25 laps in the swimming pool. Madison swam 9 laps. How many laps did they swim in all?
(A) 16
(B) 25
(C) 34
(D) 35