Multiplying and Dividing 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 product of 3.5 and 4.92?

Back

17.22

Front

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number, then move the decimal point in the dividend the same number of places. Divide as usual.

Front

What is 36.8 ÷ 2?

Back

18.4

Front

What does it mean to multiply a decimal by a whole number?

Back

Multiplying a decimal by a whole number scales the decimal by that whole number. For example, 2 x 0.5 = 1.0.

Front

What is the cost of 7 bags of candy at $1.50 each?

Back

$10.50

Front

What is 35.24 x 2.6?

Back

91.624

Front

What is the result of 8.65 x 4?

Back

34.6

Front

How do you determine the number of decimal places in a product?

Back

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