Multiplying and Dividing Decimals

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part 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 are no decimals, then count the total number of decimal places in the decimal and place the decimal point in the product accordingly.

Front

What is the rule for multiplying decimals?

Back

The product of two decimals has as many decimal places as the total number of decimal places in the factors being multiplied.

Front

How do you divide a decimal by a whole number?

Back

To divide a decimal by a whole number, divide as if there are no decimals, then place the decimal point in the quotient directly above the decimal point in the dividend.

Front

What is the rule for dividing decimals?

Back

When dividing decimals, if the divisor is a decimal, move the decimal point in the divisor to the right until it is a whole number, and do the same with the dividend.

Front

Calculate: 1.4 x 4.5

Back

6.30

Front

Calculate: 20.70 ÷ 18

Back

1.15

Front

Calculate: 76 x 1.6

Back

121.6

Front

Calculate: 2.25 x 10

Back

22.50

Front

Calculate: 5.69 ÷ 7.8 (rounded to the nearest tenth)

Back

0.7