Multiplying and dividing by powers of 10
Multiplying Decimals
Dividing Decimals
Estimating Quotients
Estimating Products
100

34.67 x 101

346.7

100

2.5 x 7.8 =

19.5

100

68.5 / 5 =

13.7

100

19.4 / 5 =

20/5 =4

100

6.1 x 8 =

6 x 8 = 48

200

789 / 103

0.789

200

9.5 x 3 =

28.5

200

2.4 / 2 =

1.2

200

80.6 / 9 =

81/9=9

200

49.1 x 5 = 

50 x 5 = 250

300

0.15 x 103

150

300

4.3 x 2.3 =

9.89

300

67.2 / 3 =

22.4

300

34.7/5 =

35/5=7

300

51 x 11 =

50 x 10 = 500

400

89 / 103

0.089

400

73.2 x 5

366

400

58.405 /5 =

11.681

400

15.8/2=

16/2=8

400

418.3 x 7 =

400 x 7 = 2,800

500

1.7 x 104

17,000

500

67.4 x 3.45

232.53

500

791.4 / 2 =

395.7

500

530.4/6=

540/6=90

500

592.1 x 81 =

600 x 80 = 48,000

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