Multiply 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 product of 8.65 and 4?

Back

34.6

Front

What is the estimated product of 2.6 and 5.46?

Back

15

Front

If Jackie earns $8.95 per hour and works 7.5 hours, how much does she earn?

Back

$67.13

Front

What is the cost of 1.78 pounds of bananas if one pound costs $0.95?

Back

Approximately $2.

Front

What does it mean to estimate a product?

Back

Estimating a product means finding a rough value that is close to the actual product, often by rounding the numbers before multiplying.

Front

What is the importance of decimal places in multiplication?

Back

Decimal places determine the precision of the result; the more decimal places, the more accurate the answer.

Front

How do you round a decimal to the nearest whole number?

Back

Look at the digit to the right of the decimal point: if it's 5 or more, round up; if it's less than 5, round down.

Front

What is the value of 2.39 x 4.37?

Back

10.4443