1-3 (A)Multiplying by Powers of 10

RuleMultiplying a decimal by a power of 10 greater than 1 moves the decimal point to the right the same number of places as the number of zeros in the power of 10.

Find each product1. 0.35 x 100

2. 8.5 x 1000

3. 2.72 x 1000

4. 5.98 x 10,000

Rule #2

•Multiplying a decimal by a power of 10 less than 1 moves the decimal point to the left the same number of places as there are after the decimal.

Find each product1. 5.4 x 0.01

2. 93.6 x 0.001

3. 7.84 x 0.1

The Sun is about 93 million miles from the Earth. Write this number in Standard form.

a = 0.1 b = 0.01 c = 101. 4.2a

2. 1.57 x c3

1. What is hundred times more than 3.34?