Multiply

Estimation

Word Problem

What's the Problem?

Exponent

100

200x15

3000

100

154x23

Nearest 10s

150x20=3,000

100

Sally bought 234 pounds of apples. John bought 3 times the amount Sally bought. How much did John buy?

702 Pounds

100

546x23= 21,558

12,558

100

0.92x10^{2}

92

200

237x12

2,844

200

277x56

300x60=18,000

200

Harry sold $74 of clothes each day for a week. How much did he sell in total?

$518

200

854x98= 83,962

83,692

200

120x10^{3}

120,000

300

548x23

12,604

300

565x984

600x1,000=600,000

300

Gary slithered for 423 seconds to visit Spongebob at work. He did this for 31 days. How many seconds did he slither in all?

13,113 seconds

300

624x231=144,414

144,144

300

74.36x10^{5}

7,436,000

400

944x154

145,376

400

562x111

Nearest 10s

560x110=61,600

400

Ms.Lewis has 789 pieces of paper in her room. Mr.Carol needs 12 times that much. How much does Mr.Carol need in all?

9,468 pieces of paper

400

897x623=658,831

558,831

400

567.69x10^{6}

567,690,000

500

894x574

513,156

500

1,456x923

1,000x900=900,000

500

The ocean is 3,854 miles long. The world is 213 miles times that amount. How many miles is the world?

820,902 miles

500

968x879=851,872

850,872

500

897.659x10^{7}

8,976,590,000

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