Powers of 10
Estimate
Decimal x Decimal
Multidigit Whole #
Word Problem
100

6.109 x 105

610,900

100

Round each number to its greatest place value.

37 x 9.08

360

100

5.6 x 4.3

24.08

100

9.91 x 886

8,780.26

100

A factory can make 23.3 gallons of cherry soda per hour. How many gallons of cherry soda can the factory make in 15 hours?

349.5

200

1.066 x 103

1,066

200

Round each number to its greatest place value.

10.07 x 240

2,000

200

0.9 x 18.1

16.29

200

6.7 x 861

5,768.7

200

A certain brand of apple juice contains 6.62 fluid ounces per carton. If Jacob buys 9 cartons, how many fluid ounces of juice will he get in total?

59.58

300

DOUBLE JEOPARDY

6.8 x 105

680,000

300

Round each number to its greatest place value.

768 x 9.1

7,200

300

8.4 x 1.6

13.44

300

896 x 0.58

519.68

300

A machine can wind 88.51 meters of yellow ribbon around a spool every hour. How many meters of yellow ribbon can the machine wind in 6 hours?

531.06

400

89.4 x 103

89,400

400

Round each number to its greatest place value.

21 x 3.1


60

400

4.2 x 14.8

62.16

400

118 x 0.85

100.3

400

Each tank at the aquarium holds 45.27 gallons of water. How much water can 14 tanks hold?

633.78

500

1.09 x 104

10,900

500

DOUBLE JEOPARDY

Round each number to its greatest place value.

6.2 x 69

420

500

8.3 x 1.8

14.94

500

0.3 x 136

40.8

500

Springdale's water tower leaks 2.74 liters of water per day. How much water is lost over 20 days?

54.8