Multiply and divide Decimals

Front

What is a decimal?

Back

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

Front

How do you multiply decimals?

Back

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.

Front

What is the rule for dividing decimals?

Back

To divide decimals, move the decimal point in the divisor (the number you are dividing by) to the right until it is a whole number. Move the decimal point in the dividend (the number being divided) the same number of places to the right, then divide as usual.

Front

Calculate: 0.6 x 0.4

Back

0.24

Front

Calculate: 3.5 x 2.2

Back

7.7

Front

Calculate: 0.75 ÷ 0.25

Back

3

Front

Calculate: 1.2 ÷ 0.4

Back

3

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 do you do after multiplying decimals?

Back

After multiplying, count the total number of decimal places in both factors and place the decimal point in the product.

Front

Calculate: 5.5 x 0.3

Back

1.65