Multiplying Decimals

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal that represents 5/10.

To multiply decimals, multiply the numbers as if they were whole numbers, then count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

0.16

$16.42

34.16 miles

138.82

Rounding a decimal means adjusting its value to make it simpler while keeping it close to the original value. For example, rounding 0.76 to the nearest whole number gives 1.

0.25

Count the total number of decimal places in the factors being multiplied and place the decimal point in the product accordingly.

The result is a decimal that is the same as multiplying the whole number by the decimal value.