Topic 4 - Fifth

Powers of 10

100

8.7 x 10⁴

87000

200

0.135 x 10³

135

300

94.2 x 10²

9420

400

3.236 x 10³

3236

500

8.2 x 10¹

82

Area Model

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

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

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

Standard Algorithm

100

8.27 x 23

190.21

200

112.24 x 3.6

404.064

300

78.82 x 6.4

504.448

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

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

Place the Decimal

100

 4.3 x 12.2 = 5246

52.46

200

18.03 x 15.2 = 274056

274.056

300

62.32 x 4.12 = 2567584

256.7584

400

1.2 x 442.2 = 53064

530.64

500

16.23x12.2=198006

198.006