4-8 Use Number Sense to Multiply Decimals

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 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 6.4 and 3.2?

Back

20.48

Front

What is the product of 4 and 0.91?

Back

3.64

Front

What is the product of 1.4 and 52.3?

Back

73.22

Front

What is the product of 0.12 and 0.9?

Back

0.108

Front

What is the product of 4.5 and 6.2?

Back

27.9

Front

How many decimal places are in 6.4?

Back

One decimal place.

Front

How many decimal places are in 3.2?

Back

One decimal place.

Front

If you multiply 0.12 by 0.9, how many decimal places will the answer have?

Back

The answer will have three decimal places.