Multiplying and Dividing 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. For example, 0.5 is a decimal.

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 rule for dividing decimals?

Back

To divide decimals, move the decimal point in the divisor (the number you are dividing by) to the right until it is a whole number. Move the decimal point in the dividend (the number being divided) the same number of places to the right.

Front

What does it mean to estimate a product?

Back

Estimating a product means rounding the numbers to make the multiplication easier, then calculating the approximate result.

Front

What is the value of 0.9 ÷ 3?

Back

0.9 ÷ 3 = 0.3.

Front

How do you find the cost per item when given a total cost?

Back

To find the cost per item, divide the total cost by the number of items.

Front

What is the result of 3.9 x 5?

Back

3.9 x 5 = 19.5.

Front

How do you convert pounds to monthly consumption?

Back

To convert annual pounds to monthly consumption, divide the total pounds by 12.

Front

What is the cost of 3.4 pounds of apples at $0.89 per pound?

Back

3.4 pounds x $0.89 = $3.02.

Front

What is the formula to find the cost of one ear of corn if 6 ears cost $3.54?

Back

The formula is $3.54 ÷ 6.