Standard Algorithm
Area Model
X Facts
Multiply by 10's
Multiply by 100's
100

10x2

20

100

35x9

315

100

5x2

10

100

2x20

40

100

1x300

300

200

64x8

512

200

93x2

186

200

6x7

42

200

4x60

240

200

4x500

2,000

300

535x4

2,140

300

284x6

1,704

300

4x8

32

300

6x30

180

300

2x700

1,400

400

849x6

5,094

400

829x6

4,974

400

7x9

63

400

8x70

560

400

7x600

4,200

500

4,615x7

32,305

500

3,815x3

11,445

500

9x9

81

500

5x90

450

500

8x900

7,200

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