Multiplying Decimals

Whole Number x Decimal

100

5 x .04

0.2

200

6 x .5

3

300

.3 x 23

6.9

400

42 x 2.2

92.4

Decimal x Decimal

100

.5 x .25

0.125

200

.20 x .5

0.1

300

.23 x .3

0.069

400

0.3 x 0.5

0.15

Word Problems

100

Alexa went to the store. She bought 6 watermelons. Each watermelon cost $.36   How much did she spend altogether?

$2.16

200

Andrew has some wood. Each piece is 3.46 x 10³ inches long. How long is the wood?

3,460 inches

300

Andrea is buying 4 folders. They each cost $1.27 How much is she paying for the folders in all?

$5.08

400

Melissa has a box that weighs .78 x 10² pounds. How much does the box weight?

78 pounds

Decimals and Powers of 10

100

What is 3.4 x 10

34

200

What is .45 x 1,000

450

300

What is .032 x 100

3.2

400

What is .687 x 10⁴

6,870