Chapter 2: Decimal Operations

Addition

100

7.234 + 9

What is 16.234?

200

2.12 + 13.2

What is 15.32?

300

7.4 + 3.9

What is 11.3?

400

James buys a new Diary of a Wimpy Kid book for $15.04 and an Among Us T-shirt for $22.70. How much will his total be?

What is $37.74?

500

Mr. Belfor is entering a pumpkin pie eating contest on Wednesday. To prepare, he ate 12.75 pumpkin pies on Sunday but only 1.082 pies on Monday -- because he felt sick from Sunday. How much pumpkin pie did he eat all-together?

What is 13.832 pumpkin pies?

Subtraction

100

65 - .076

What is 64.924?

200

At this time of year the temperature can vary a lot. At noon it is 69.1 degrees. If the temperature drops 23.5 degrees by the evening, what will the temperature be?

What is 45.6 degrees?

300

Annie has $6.57 to spend on a new shirt at a store in Old Orchard. She likes a shirt that costs $11.99. How much money does she need to borrow to buy the shirt that she likes?

What is $5.42?

400

8.14 - 4.912

What is 3.228?

500

7 - .012

What is 6.988?

Multiplication

100

1.25 x .008

What is 0.01?

200

13.95 x 7

What is 97.65?

300

The correct answer to 3.4 x .442

a) 15.028

b) 1.5028

c) 150.28

d) 1502.8

What is b) 1.5028?

400

John paid $12.20 for a DVD of his favorite movie. Jessica paid 1.5 times as much for the same DVD. How much did Jessica pay for the DVD?

What is $18.30?

500

1.3 x 0.51

What is 0.663?

Division

100

175.8 divided by 6.

What is 29.3?

200

0.6831 divided by 2.3

What is 0.297?

300

Michelle is running in a 20 kilometer race. After the starting point, there are water stations every 0.8 kilometer. How many water stations are there in all?

What is 25?

400

What is the quotient of 0.96 divided by 0.12?

What is 8?

500

Mike wants to divide 6.42 by 0.2. What should his first step be?

What is move the decimal in 0.2 one place to the right and the decimal in 6.42 one place to the right?

?

100

Explain what you need to do in order to figure out where the decimal goes on a decimal multiplication problem.

What is count the decimal places in the factors and put that amount in the product?

200

Jordan bought a tiny turtle for $1.25 and turtle food for $0.37. He gave the clerk $2. How much change did he get?

What is $0.38?

300

6³

What is 216?

400

Melanie made 42 bracelets and 28 necklaces to put in gift boxes. She wants every box to have the same number of bracelets and necklaces. How many gift boxes can she make?

What is 14 gift boxes?

500

The Wilmette Public Library celebrated Library Lovers Month by giving a book to each elementary student who read at least 10 books during the month. At the end of the month, 59 students had earned books. At a cost of $8.34 per book, how much will it cost to give each student a book?

What is $492.06.