Multi-Digit Multiplication

Multiply

100

200x15

3000

200

237x12

2,844

300

548x23

12,604

400

944x154

145,376

500

894x574

513,156

Estimation

100

154x23

Nearest 10s

150x20=3,000

200

277x56

300x60=18,000

300

565x984

600x1,000=600,000

400

562x111

Nearest 10s

560x110=61,600

500

1,456x923

1,000x900=900,000

Word Problem

100

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

702 Pounds

200

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

$518

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

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

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

What's the Problem?

100

546x23= 21,558

12,558

200

854x98= 83,962

83,692

300

624x231=144,414

144,144

400

897x623=658,831

558,831

500

968x879=851,872

850,872

Exponent

100

0.92x10²

92

200

120x10³

120,000

300

74.36x10⁵

7,436,000

400

567.69x10⁶

567,690,000

500

897.659x10⁷

8,976,590,000