PS Multiplying Decimals

Front

What is a decimal?

Back

A decimal is a fraction whose denominator is a power of ten, represented with a dot (.) to separate 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 area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width.

Front

If a jogger runs 4.8 miles each day for 22 days, how do you find the total distance?

Back

Multiply the daily distance (4.8 miles) by the number of days (22): 4.8 x 22 = 105.6 miles.

Front

What does it mean to find the total cost of items?

Back

Finding the total cost means adding up the price of each item purchased.

Front

How do you calculate the cost of apples if they are $0.89 per pound and you buy 3 pounds?

Back

Multiply the price per pound ($0.89) by the number of pounds (3): 0.89 x 3 = $2.67.

Front

What is the formula for calculating the area of a rectangle?

Back

Area = Length x Width.

Front

How do you calculate earnings based on hourly wage?

Back

Multiply the hourly wage by the number of hours worked.

Front

If Mario earns $8.20 per hour and works 7.5 hours, how much does he earn?

Back

Multiply $8.20 by 7.5: 8.20 x 7.5 = $61.50.

Front

What is the total cost if peaches are $2.50 per pound and you buy 3 pounds?

Back

Multiply the price per pound ($2.50) by the number of pounds (3): 2.50 x 3 = $7.50.