Operations with Decimals

Addition/Subtraction

100

3.84 + 2.4

What is 6.24

200

25.34 - 19.8

What is 5.54

300

19.729 - 14

What is 5.729

400

543 - 2.39

What is 540.61

500

1289.36 + 47.627

What is 1336.987

Multiplication

100

0.2 x 1.3

What is .26

200

232 x .93

What is 215.76

300

.2039 x 3.4

What is .69326

400

1.4783 x 4.38

What is 6.474954

500

12.376 x 234.1

What is 2897.2216

Division

100

4.55 / 5

What is .91

200

0.63 / 0.7

What is 0.9

300

12 / .04

What is 300

400

1.896 /.08

What is 23.7

500

98.02 / 2.9

What is 33.8

Problem Solving

100

A blueberry pie has 30.6 grams of fat. If it is cut into 6 slices, how many grams of fat are in 1 slice?

What is 5.1 grams

200

The temperature of the ocean was 67.3 degrees at dawn. By noon, it had increased by 8.6 degrees. What was the temperature at noon?

What is 75.9 degrees.

300

Todd ran 5 laps in 28.5 minutes. If he ran each lap at the same pace, how long did it take him to run one full lap?

What is 5.7 minutes.

400

Maria received $15 an hour for raking leaves. If she raked for 5.5 hours, how much was she paid?

What is $82.50

500

Juan invested some money in the stock market. On Tuesday the value of one share was $28.71. On Wednesday each stock lost $4.27. If he owns 9 shares, how much is his stock worth on Wednesday?

What is $219.96