Decimal Multiplication

Front

What is decimal multiplication?

Back

Decimal multiplication is the process of multiplying numbers that have decimal points. It involves multiplying the numbers as if they were whole numbers and then placing the decimal point in the product based on the total number of decimal places in the factors.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there is no decimal. Then, place the decimal point in the product by counting the number of decimal places in the decimal factor.

Front

Calculate: 1.7 x 9

Back

15.3

Front

Calculate: 19 x 1.8

Back

34.2

Front

Calculate: 1.3 x 4

Back

5.2

Front

Calculate: 4 x 2.05

Back

8.2

Front

Calculate: 97 x 0.14

Back

13.58

Front

What is the rule for placing the decimal point in multiplication?

Back

The decimal point in the product is placed so that the total number of decimal places in the product equals the sum of the decimal places in the factors.

Front

What is the product of 0.5 and 0.2?

Back

0.1

Front

If you multiply a decimal by 10, what happens to the decimal point?

Back

The decimal point moves one place to the right.