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 that represents 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 to the right until it is a whole number, and move the decimal point in the dividend the same number of places. Then divide as usual.

Front

What is the value of 7.2 gallons of gas used to drive 129.6 miles per gallon?

Back

18 miles per gallon.

Front

How much sugar does Julie use for 4.5 gallons of tea if she adds 3/4 cup per gallon?

Back

3.375 cups of sugar.

Front

What is 72 ÷ 0.09?

Back

800.

Front

How do you calculate total earnings from hourly wage?

Back

Multiply the hourly wage by the number of hours worked.

Front

What is Katy's total earnings if she earns $6.80 per hour for 6.5 hours?

Back

$44.20.

Front

What is the product of 14.5 and 1.24?

Back

17.98.

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting its value to a nearby specified place value, making it simpler while keeping it close to the original value.