multiplying/dividing decimals & whole numbers

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a decimal point. For example, 0.5 is a decimal that represents 5/10.

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 32?

Back

16

Front

How do you divide a whole number by a decimal?

Back

To divide a whole number by a decimal, you can multiply both the dividend and the divisor by 10 until the divisor is a whole number, then perform the division.

Front

What is the total distance swum if a swimmer swam 345 meters over 23 days?

Back

15 meters per day.

Front

How do you calculate the total amount needed for multiple items?

Back

Multiply the cost of one item by the number of items needed.

Front

If each student needs 8 ounces of vinegar for an experiment, how much is needed for 25 students?

Back

400 ounces.

Front

What is the formula to find the total cost of a service?

Back

Total Cost = Daily Rate x Number of Days.

Front

If Ken's Pet Services charges $16 a day, how many days can Ms. Smith afford with $1,024?

Back

64 days.

Front

How do you calculate calories burned during exercise?

Back

Calories burned = Calories per hour x Hours exercised.