Multiplying Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (.) to separate the whole number from the fractional part.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal, then place the decimal point in the product based on the number of decimal places in the original decimal.

Front

What is the product of 82 and 0.13?

Back

10.66

Front

What is the product of 4 and 0.03?

Back

0.12

Front

What is the product of 3.7 and 0.43?

Back

1.591

Front

What is the product of 0.4 and 7?

Back

2.8

Front

What is the product of 5.78 and 3.5?

Back

20.23

Front

How do you determine the placement of the decimal point in multiplication?

Back

Count the total number of decimal places in the numbers being multiplied. The decimal point in the product is placed to the left of the last digit, equal to that total.

Front

What is the first step in multiplying decimals?

Back

The first step is to ignore the decimal points and multiply the numbers as if they were whole numbers.

Front

What happens to the decimal point when multiplying two decimals?

Back

The decimal point in the product is determined by the total number of decimal places in both factors.