Multiplying and Dividing Decimals in Word Problems 2024 (RE)

Front

What is a decimal?

Back

A decimal is a fraction expressed in a special form. It uses a decimal point to separate the whole number part 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

How do you divide decimals?

Back

To divide decimals, move the decimal point in the divisor to the right until it is a whole number. Move the decimal point in the dividend the same number of places. Then, divide as usual.

Front

What is the importance of estimating in decimal operations?

Back

Estimating helps to check the reasonableness of an answer and can simplify calculations.

Front

What is the formula to find the cost per item?

Back

Cost per item = Total cost ÷ Number of items.

Front

If 12 friends share a total cost of $83.40, how do you find out how much each person pays?

Back

Divide the total cost by the number of friends: $83.40 ÷ 12 = $6.95.

Front

How do you calculate earnings based on hourly wage?

Back

Earnings = Hourly wage × Number of hours worked.

Front

If Jackie earns $8.95 per hour and works 34.5 hours, how much does she earn?

Back

$8.95 × 34.5 = $308.78.

Front

What is the total earnings for babysitting if the rate is $3.85 per hour for 18 hours?

Back

Total earnings = $3.85 × 18 = $69.30.

Front

How do you calculate the total cost of items purchased?

Back

Total cost = Price per item × Number of items.