## Engage NY Eureka Math 5th Grade Module 1 Lesson 10 Answer Key

### Eureka Math Grade 5 Module 1 Lesson 10 Problem Set Answer Key

Question 1.
Subtract, writing the difference in standard form. You may use a place value chart to solve.
a. 5 tenths â€“ 2 tenths = ____ tenths = ___
Answer:-Â  5 tenths â€“ 2 tenths = 3 tenths = 0.3

b. 5 ones 9 thousandths â€“ 2 ones = ___ ones ______ thousandths = ____
Answer:- 5 ones 9 thousandths â€“ 2 ones = 3Â  ones = 9Â  thousandths = 3.009

c. 7 hundreds 8 hundredths â€“ 4 hundredths = ___ hundreds ___ hundredths = ____
Answer:- 7 hundreds 8 hundredths â€“ 4 hundredths = 7Â  hundredsÂ  4Â  hundredths = 700.04

d. 37 thousandths â€“ 16 thousandths = __ thousandths = _____
Answer:- 37 thousandths â€“ 16 thousandths = 21 thousandths = 0.021

Question 2.
Solve using the standard algorithm.
a. 1.4 â€“ 0.7 =

b. 91.49 â€“ 0.7 =
Answer:-Â  91.49 â€“ 0.7 =Â  90.79

c. 191.49 â€“ 10.72 =
Answer:- 191.49 â€“ 10.72 = 180.77

d. 7.148 â€“ 0.07 =
Answer:-Â  7.148 â€“ 0.07 = 7.078

e. 60.91 â€“ 2.856 =
Answer:-Â  60.91 â€“ 2.856 = 58.054

f. 361.31 â€“ 2.841 =
Answer:-Â  61.31 â€“ 2.841 = 358.469

Question 3.
Solve.
a. 10 tens â€“ 1 ten 1 tenth

b. 3 â€“ 22 tenths

c. 37 tenths â€“ 1 one 2 tenths

d. 8 ones 9 hundredths â€“ 3.4

e. 5.622 â€“ 3 hundredths

f. 2 ones 4 tenths â€“ 0.59

Question 4.
Mrs. Fan wrote 5 tenths minus 3 hundredths on the board. Michael said the answer is 2 tenths because 5 minus 3 is 2. Is he correct? Explain.
Answer:-Â  No, Michael is not correct. He is thinking that 5 tenths minus 3 tenths, but the question is 5 tenths minus 3 hundredths. Therefore,
5 tenths minus 3 hundredthsÂ  which means 0.5 – 0.03 = 0.47.

Question 5.
A pen costs $2.09. It costs$0.45 less than a marker. Ken paid for one pen and one marker with a five-dollar bill. Use a tape diagram with calculations to determine his change.

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