Multiply Greater Numbers by Powers of 10
Estimate Products
Multiply Whole Numbers with Zeros
Multiply 2-Digit by 2-Digit Numbers
Multiply 3-Digit by 2-Digit Numbers
100

What is 103?

1,000

100

Use compatible numbers to estimate 27×6.

25 x 5 = 125

100

40 x 30

1200

100

12 x 15

180

100

234 x 12

2,808

200

Multiply 50 x 102.

5,000

200

Estimate 45×8 using rounding.

50 x 10 = 500

200

300 x 7

2100

200

23 x 34

782

200

456×23

10,488

300

What is 1000 x 102?

100,000

300

Estimate 62×4using compatible numbers.

60 x 5 = 300

300

2000 x 5

10000

300

45 x 56

2,520

300

 678×24

16,272

400

Multiply 400 x 103.

400,000

400

How would you estimate 78×5?

80 x 5 = 450

400

60 x 90

5400

400

57 x 69

3,933

400

789×45

35,505

500

What is 10,000 x 103?

10,000,000

500

Estimate 93×7 using rounding.

90 x 10 = 900

500

4000 x 2

8000

500

36 x 48

1,728

500

856×34

29,104