Powers of 10
Area Model
Standard Algorithm
Place the Decimal
100

8.7 x 104

87000

100

6.2 x 8.4

6 x 8 = 48

6 x .4 = 2.4

8 x . 4 = 3.2

.2 x .4 = .08

52.08

100

8.27 x 23

190.21

100

 4.3 x 12.2 = 5246

52.46

200

0.135 x 103

135

200

4.7 x 9.2

4 x 9 = 36

4 x .2= .8

.7 x .2 = .14

.7 x 9 = 6.3

43.24

200

112.24 x 3.6

404.064

200

18.03 x 15.2 = 274056

274.056

300

94.2 x 102

9420

300

5.2 x 3.7

5 x 3 = 15

5 x .7 = 3.5

.2 x .7 = .14

.2 x 3 = .6

19.24

300

78.82 x 6.4

504.448

300

62.32 x 4.12 = 2567584

256.7584

400

3.236 x 103

3236

400

Joy drinks 4.5 bottles of water per day. Each bottle contains 16.5 fluid ounces. How many fluid ounces of water does she drink per day. 



74.25

400

1.2 x 442.2 = 53064

530.64

500

8.2 x 101

82

500

Holly has 3.5 bags of candy. If each bag weighs 0.03 ounces, how many many ounces of candy does Holly have?

0.105

500

16.23x12.2=198006

198.006