Other (Challenge)
Multiply Decimals
Multiply Decimals by Powers of 10
Divide Decimals by Powers of 10
Divide Decimals
100

If the product of two numbers is 4.2 and one of the numbers is 0.7, what is the other number?

What is 6?

100

This is the product of 0.5 and 2.

What is 1.0?

100

What is 3.5 multiplied by 10?

What is 35?
100

Divide 45.6 by 10.

What is 4.56?

100

What is 4.5 divided by 5?

What is 0.9?
200

Fill in the blank with <, > or =:

0.523 x 10_____ 52.3 ÷ 0.01

What is 0.523 × 103 < 52.3 ÷ 0.01

200

Multiply 1.2 by 3.8. 

What is 4.56

200

What is 0.875 x 102

What is 87.5?

200

Find the blank: 4.7 ÷ _____ = 0.047

What is 10or 100?

200

Divide 0.84 by 0.7.

What is 1.2?

300

Which of the following is equivalent to 3.6 x 2.5?

A. 36 x 25

B. 0.36 x 0.25 x 100

C. (3 x 2) + (0.6 x 2) + (3 x 0.5) + (0.6 x 0.5)

D. (4 x 2.5) - 0.4 x 2.5

What is B. 0.36 x 0.25 x 100?

300

A loaf of bread costs $2.20. If you buy 3.5 loaves, how much will you spend?

What is $7.70?

300

Multiply 4.06 x 103

What is 4,060?

300

What is 56.43 divided by 103?

What is 0.05643?
300

A tank contains 2.52 gallons of water. If the water is pumped out evenly over 0.6 hours, how many gallons are pumped out per hour?

What is 4.2 gallons?

400

Fill in the blank: 78.9 ÷ 0.01 = ____ x 100

What is 78.9?

400

A train travels 7.85 miles per hour. How far will it travel in 2.3 hours?

What is 18.055 miles?

400

A scientist measures a particle's size as 0.034 millimeters. If it is magnified 104 times, what will the measurement be?

What is 340 millimeters?

400

A train travels 560 miles in 10,000 minutes. What is its speed in miles per minute?

What is 0.056 miles per minute?

400

A runner completes a 1.96-mile race in 0.4 hours. What is the runner's average speed in miles per hour?

What is 4.9 miles per hour?

500

Arrange the expressions in order of their values. Start with the smallest value: 6.2 x 104, 1.5 ÷  3, 1.5 x 0.2, 6.2 ÷ 20

What is: 1.5 x 0.2, 6.2 ÷ 20, 1.5 ÷ 3, 6.2 x 104

500

A rectangular garden measures 4.25 meters in length and 3.64 meters in width. What is its area?

What is 15.47 square meters?

500

A machine produces 0.0039 liters of oil per cycle. How much oil is produced after 104 cycles?

What is 39 liters?

500

A scientist measures 3,900 milliliters of a solution. If she divides it evenly into 105 containers, how much solution is in each container?

What is 0.039 milliliters?

500

A bakery earns $11.25 by selling cakes priced at $0.15 each. How many cakes were sold?

What is 75?
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