All the solutions provided in McGraw Hill My Math Grade 1 Answer Key PDF Chapter 6 Lesson 6 Subtract Tens will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 1 Answer Key Chapter 6 Lesson 6 Subtract Tens
Explore and Explain
______________ lightning bugs
Teacher Directions: Use 
to model. Alex put 40 lightning bugs in ajar. He let 20 of the lightning bugs go. How many bugs are left in the jar? Write the number. Draw the rods to show your work. Mark an X on the rods to show the bugs that were let go.
Answer:
Explanation:
I used to model the problem.
Alex put 40 lightning bugs in ajar
He let 20 of the lightning bugs go
I drew the rods to show the work
40 – 20 = 20.
See and Show
Find 30 – 20.
Helpful Hint
To subtract 30 – 20. subtract the tens.
Find 50 – 10.
5 tens – 1 ten = 4 tens or 40.
Subtract. Use 
to help.
Question 1.
4 tens – 2 tens = ______________ tens
40 – 20 = ______________
Answer:
Explanation:
4 tens – 2 tens = 2 tens
40 – 20 = 20.
Question 2.
6 tens – 1 ten = ______________ tens
60 – 10 = ______________
Answer:
Explanation:
6 tens – 1 tens = 5 tens
60 – 10 = 5.
Question 3.
7 tens – 3 tens = ______________ tens
70 – 30 = _______________
Answer:
Explanation:
7 tens – 3 tens = 4 tens
70 – 30 = 40.
Question 4.
9 tens – 3 tens = _______________ tens
90 – 30 = ________________
Answer:
Explanation:
9 tens – 3 tens = 6 tens
90 – 30 = 60.
Talk Math How does knowing 6 – 2 help you find 60 – 20?
Answer:
Explanation:
6 – 2 helps us to find 60 – 20 by putting a zero beside the answer
6 – 2 = 4
60 – 20 = 40.
On My Own
Subtract. Use to help.
Question 5.
2 tens – 2 tens = ________________ tens
20 – 20 = ________________
Answer:
Explanation:
2 tens – 2 tens = 0 tens
20 – 20 = 0.
Question 6.
8 tens – 3 tens = ________________tens
80 – 30 = ________________
Answer:
Explanation:
8 tens – 3 tens = 5 tens
80 – 30 = 50.
Question 7.
9 tens – 5 tens = ________________ tens
90 – 50 = ________________
Answer:
Explanation:
9 tens – 5 tens = 4 tens
90 – 50 = 40.
Question 8.
7 tens – 1 ten = ________________ tens
70 – 10 = ________________
Answer:
Explanation:
7 tens – 1 ten = 6 tens
70 – 10 = 60.
Question 9.
4 tens – 3 tens = ________________ ten
40 – 30 = ________________
Answer:
Explanation:
4 tens – 3 tens = 1 ten
40 – 30 = 10.
Question 10.
Answer:
Explanation:
9 tens – 2 tens = 7 tens
90 – 20 = 70.
Question 11.
Answer:
Explanation:
5 tens – 3 tens = 2 tens
50 – 30= 20.
Question 12.
Answer:
Explanation:
6 tens – 5 tens = 1 ten
60 – 50 = 10.
Question 13.
Answer:
Explanation:
8 tens – 6 tens = 2 tens
80 – 60 = 20.
Problem Solving
Question 14.
Justin caught 30 fish. Paul caught 20 fish. How many more fish did Justin catch than Paul?
____________ fish
Answer:
Explanation:
Justin caught 30 fish
Paul caught 20 fish
3 tens – 2 tens = 1 ten
30 – 20 = 10
So, Justin caught 10 fishes more than Paul.
Question 15.
There are 40 children in Lily’s dance class. 20 of them are girls. How many of them are boys?
_____________ boys
Answer:
Explanation:
There are 40 children in Lily’s dance class
20 of them are girls
4 tens – 2 tens = 2 tens
40 – 20 = 20
So, 20 children are boys.
HOT Problem 80 people are in line to ride a roller coaster. 20 people get on the roller coaster. The answer is 60 people. What is the question?
Answer:
80 people are in line to ride a roller coaster. 20 people get on the roller coaster. How many people are still in the line?
Explanation:
80 – 20 = 60
The answer is 60 people.
McGraw Hill My Math Grade 1 Chapter 6 Lesson 6 My Homework Answer Key
Subtract.
Question 1.
4 tens – 3 tens = _______________ ten
40 – 30 = _______________
Answer:
Explanation:
4 tens – 3 tens = 1 ten
40 – 30 = 10.
Question 2.
7 tens – 2 tens = _______________ tens
70 – 20 = _______________
Answer:
Explanation:
7 tens – 2 tens = 5 tens
70 – 20 = 50.
Question 3.
6 tens – 6 tens = _______________ tens
60 – 60 = _______________
Answer:
Explanation:
6 tens – 6 tens = 0 tens
60 – 60 = 0.
Question 4.
9 tens – 2 tens = _______________ tens
90 – 20 = _______________
Answer:
Explanation:
9 tens – 2 tens = 7 tens
90 – 20 = 70.
Question 5.
8 tens – 6 tens = _______________ tens
80 -60 = _______________
Answer:
Explanation:
8 tens – 6 tens = 2 tens
80 – 60 = 20.
Question 6.
Answer:
Explanation:
8 tens – 7 tens = 1 ten
80 – 70 = 10.
Question 7.
Answer:
Explanation:
5 tens – 1 ten = 4 tens
50 – 10 = 40.
Question 8.
Answer:
Explanation:
6 tens – 3 tens = 3 tens
60 – 30 = 30.
Question 9.
Answer:
Explanation:
9 tens – 3 tens = 6 tens
90 – 30 = 60.
Question 10.
There are 50 children at the circus. 20 of those children leave to go home. How many children are still at the circus?
_____________ children
Answer:
Explanation:
There are 50 children at the circus
20 of those children leave to go home
5 tens – 2 tens = 3 tens
50 – 20 = 30
So, 30 children are still in the circus.
Test Practice
Question 11.
There are 70 people at a movie theatre. 20 of them are eating popcorn. How many people are not eating popcorn?
(A) 30 people
(B) 50 people
(C) 60 people
(D) 70 people
Answer:
(B) 50 people
Explanation:
There are 70 people at a movie theatre
20 of them are eating popcorn
7 tens – 2 tens = 5 tens
70 – 20 = 50
So, 50 people are not eating popcorn.
Math at Home Have your child tell you how many tens are left in 70 – 40.
Answer:
30 tens are left
Explanation:
70 – 40
7 tens – 4 tens = 3 tens
70 – 40 = 30.