Multiply Decimals by Powers of 10
Estimating Decimals
Multiply a decimal by a whole number
Multiply a decimal by a decimal
Multiply a decimal by
a decimal using
Partial Products
100

3.63 x 10 ^ 2

363

100

7.8

8

100

6.8 x 3 =

20.4

100

0.4 x 0.5 =

0.20

100

How would you break a part 19.2 x 2.35?

19 and .2

2 and .35

200

2.1 x 10 ^ 1

21

200

6.25

6 or 6.3

200

17.12 x 6 =

102.72

200

.10 x .3 =

0.03

200

What are the partial products of 14.1 x 2.3=

28

4.2

.2

0.03

300

0.9843 x 10 ^ 5

98,430

300

4.3 x 8

4 and 10

300

82.31 x 9 =

740.79

300

21.2 x .3 =

6.36

300

What are the partial products of 2.3 x 4.6 =

8

1.2

1.2

0.18

400

26.014 x 10 ^ 3

26,014

400

9.456

9, 9.5, 9.46

400

16.21 x 3 =

48.63

400

35.2 x 2.45

86.24

400

How would you break a part 162.45 x 7.3=

162 and .45

7 and .3

500

4.2 x 10 ^ 4

42,000

500

11 x 4.9

10 x 5

500

145.35 x 4 =

581.4

500

100.3 x 55.2 = 

5,536.56

500

What are the partial products of 59.36 x 4.1=

236

5.9

1.44

0.36

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