Powers of 10
Estimation
Divide by a whole number
Divide by a decimal
Word Problems
100

1.45/10

.145

100

28.9/3

30/3=10

100

1.62/3

0.54

100

21.6/1.8

12

100

A box of oil paints contains 9 cans of different colors. Each can is the same weight. If the box weighs 20.25 pounds, how much does each can weigh?

2.25 pounds

200

97.27/100

.9727

200

52.8/9

54/9=6

200

0.92/4

0.23

200

10.23/0.55

18.6

200

A board is 10.17 feet long. Callie needs to cut the board into 3 equal sections. How long will each section be?

3.39 feet

300

2.44/100

.0244

300

23.6/7.1

21/7=3

300

20.25/9

2.25

300

50.4/2.4

21

300

Over 6 days, Axle ran 17.22 miles. He ran the same distance each day. How far did Axle run each day?

2.87 miles

400

76/100

.76

400

45.5/8

48/8=6

400

4.20/15

0.28

400

95.28/1.2

79.4

400

How many quarters are there in $30? Solve the equation 30/0.25 to help you.

120 quarters

500

63/10,000

.0063

500

216/15

225/15=15

216/10= 21.6

500

12/8

1.5

500

29.67/4.6

6.45

500

If 8 ounces of canned pumpkin have 82 calories, how many calories are in one ounce?

Hint: do 82/8 and you will have to annex zeroes with a decimal point!

10.25 calories

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