Multiplying Decimals by 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. For example, 5.36 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 decimal.

Front

What is the product of 5.36 and 5?

Back

The product is 26.8.

Front

What does it mean to round a decimal?

Back

Rounding a decimal means adjusting the number to a nearby value that is simpler or easier to work with, often to a certain number of decimal places.

Front

What is the value of 5.04 multiplied by 8?

Back

The value is 40.32.

Front

If a model car is 3.25 inches long, how long are 10 cars lined up?

Back

The total length is 32.5 inches.

Front

What is the total cost of 3 sandwiches at $5.79 each?

Back

The total cost is $17.37.

Front

How do you find the total cost of multiple items?

Back

Multiply the cost of one item by the number of items to find the total cost.

Front

What is the cost of 12 erasers at $0.85 each?

Back

The total cost is $10.20.

Front

What is the importance of decimal placement in multiplication?

Back

Decimal placement affects the value of the product; it determines how many places to move the decimal point in the result.