5.4 Multiply Decimals and Whole Numbers

Front

What is a decimal?

Back

A decimal is a number that includes a decimal point, which separates the whole number part from the fractional part.

Front

How do you multiply a decimal by a whole number?

Back

To multiply a decimal by a whole number, multiply as if there were no decimal, then place the decimal point in the product based on the number of decimal places in the original decimal.

Front

What is the product of 0.5 and 4?

Back

2.0

Front

If you have 0.73 liters of juice and someone has 2 times that amount, how much juice do they have?

Back

1.46 liters

Front

What is the product of 154.75 and 36?

Back

5,571

Front

If Sidney’s bag of popcorn weighs 1.89 ounces, how much does Sam’s bag weigh if it is 4 times heavier?

Back

7.56 ounces

Front

What is the product of 15.8 and 14?

Back

221.2

Front

If Lars walks 4 times farther than Michelle, and Michelle walks 0.23 miles, how far does Lars walk?

Back

0.92 miles

Front

What is the first step in multiplying decimals?

Back

Identify the numbers to be multiplied and ignore the decimal points for now.

Front

How do you determine where to place the decimal in the product of two decimals?

Back

Count the total number of decimal places in both numbers being multiplied and place the decimal in the product accordingly.