Multiplying and Dividing Decimals Review

Front

What is a decimal?

Back

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

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 result of 0.2 x 0.4?

Back

0.08

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 and divide as usual.

Front

What is 1.2 ÷ 4?

Back

0.3

Front

What does the expression 2.3 x 3 represent?

Back

It represents multiplying 2.3 by 3, which equals 6.9.

Front

What is the cost of 1.6 gallons of gas at $2.85 per gallon?

Back

$4.56

Front

What is 25.2 ÷ 4?

Back

6.3

Front

What is the first step in multiplying decimals?

Back

Multiply the numbers as if they were whole numbers.

Front

How do you determine the placement of the decimal point in a product of decimals?

Back

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