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

500

$3.99 x 6

$23.94

Whole Number x Decimal Part 2

100

27 x 0.8

21.6

200

45 x 4.6

207

300

62 x .003

0.186

400

.038 x 32

1.216

500

$11.59 x 37

$428.83

Decimal x Decimal

100

.5 x .25

0.125

200

0.3 x 0.5

0.15

300

.23 x .3

0.069

400

.730 x .120

0.0876

500

1.28 x 1.5

1.92

Decimal x Decimal

100

.20 x .5

0.1

200

.44 x .08

0.0352

300

1.2 x .02

0.024

400

.9 x 9.99

8.991

500

0.25 x 0.75

0.1875

Powers of 10

100

True Or False: When multiplying decimals I have to line them up first, then multiply.

False

200

True Or False: If I multiply a factor by 100, the digits move 2 place values

True

300

2.3 X 10 ³ = 0.0023

False

400

Find the missing Factor: 12.03 X (?) = 1203

100 or 10²

500

Write missing factor that makes the sentence true: (?) x 10³ = 70,700

70.7