Math Topic 4 Review

Where does the Decimal Placement go

100

0.5 x 0.5 = 25 

Before the 2 or 0.25

200

4 x 0.21 = 84

Before the 8 or 0.84

300

6.4 x 3.2 = 2048

Between 0 and 4 or 20.48

400

0.12 x 0.9 = 108

Before 1 or 0.108

500

1.4 x 52.3 = 7322

Between the 3 and 2 or 73.22

Multiplying Decimals

100

0.6 x 0.3  

What is 0.18

200

2.5 x 0.7

What is 1.75?

300

2.4 x 3.6

What is 8.64

400

5.7 x 3.6 

What is 20.52?

500

0.04 x 1.9

What is 0.076

Rounding Decimals

100

10 x 4.5

What is 45

200

100 x 4.5 

What is 450?

300

0.08 x 10^2

What is 8?

400

1000 x 4.5

What is 45000

500

0.005 x 10^3

What is 5?