MULTIPLYING DECIMALS

Math

Multiply as you would with integers…you do not have to line the decimals up!

To place the decimal point in the product (your answer), count the number of decimal places in each of your factors.

The product should have the same number of decimal places as the sum of the decimal places in the factors.

₊0.7x 0.80.56

7x 856

1 decimal place

1 decimal place

= 2 decimal places

Same Digits

Multiply.

0.1 1.25 -2.78x 6 x 23

x 0.8

1.6 0.04x 1.2 x -2

Multiply.

25.6 2.03 152.23x 2.44 x 7 x 3.3

Word Problem

On average, 0.36 kg of carbon dioxide is added to the atmosphere for each mile a single car is driven. How many kilograms of carbon dioxide are added for each mile that 132 cars in the U.S. are driven?