TWO-DIGIT BY TWO-DIGIT MULTIPLICATION
ESTIMATING PRODUCTS
THREE-DIGIT BY TWO-DIGIT MULTIPLICATION
MULTIPLYING BY 10'S
Surprise!
100

56 X 43

What is 2,408

100
ESTIMATE THE PRODUCT OF 42 X 36.
What is 1,600?
100

35 X 490.

What is 17,150

100

10 X 32.

What is 320

100

134,842 x 1

What is 134,842

200

28 X 79

2,212

200
ESTIMATE THE PRODUCT OF 13 X 24.
What is 200?
200

18 x 450

What is 8,100

200

25 X 20.

What is 500

200

675,938,219,000 x 0

What is 0

300

41 X 90

What is 3,690

300
ESTIMATE THE PRODUCT OF 76 AND 62.
What is 4,800?
300

470 x 60

What is 28,200

300

43 X 30.

What is 1,290

300

106

What is 1,000,000

400

87 AND 63

What is 5,481

400
ESTIMATE THE PRODUCT OF 31 X 52.
What is 1,500?
400

12 x 144

What is 1,728

400

12 X 40.

What is 480

400

Name the first 5 digits of pie

What is 3.1415

500

64 AND 22

What is 1,408

500
ESTIMATE THE PRODUCT OF 97 X 22.
What is 2,000?
500

98 x 247 

What is 24,206

500

90 X 65.

What is 5,850

500

124 x 230

What is 28,520

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