Operations with Decimals

Addition

100

3.4 + 2.4

What is 5.8

200

25.348 + 19.832

What is 45.18

300

19.729 + 4.32

What is 24.049

400

5439.3298 + 2.39

What is 5441.7198

500

1,289.36 + 47.627

What is 1,336.987

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 4.474954

500

12.376 x 234.1

What is 2897.2216

Subtraction

100

4.55 - 3.095

What is 1.455

200

0.63 -0.07

What is 0.56

300

11.2 - 8.046

What is 3.154

400

1.26 - 0.884

What is 0.376?

500

98.02 - 2.9

What is 95.12

Vocabulary

100

The product of 12.3 and 2

What is 24.6

200

The sum of 3.45 and 8.2

What is 11.65

300

The sum of 12 and 28.8

What is 40.8

400

The difference between 38.376 and 4.3

What is 34.076

500

The difference between 6 and 3.6090

What is 2.391

Problem Solving

100

A piece of apple pie has 278 calories. If I eat 2 and a half pieces, how many calories have I eaten?

What is 695

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 and each lap took him 5.7 minutes to complete, how long did he run?

What is 28.5 minutes

400

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

What is $77.50

500

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

What is $219.96