Partial Products
Standard Algorthim
Area Model
Random
Simple Multiplication
100

2 x 43

86

100

8 x 56

448

100

425 x 4

1,700

100

Solve using partial products: 

3 x 212

636

100

2x7

14

200

4 x 43

172

200

9 x 55

495

200

534 x 7

3,738

200

Solve using the standard algorithm: 

6 x 413

2,586

200

4x8

32

300

3 x 214

642

300

4 x 513

2,052

300

209 x 8

1,672

300

Solve using the standard algorithm: 

4 x 4,309

17,236

300

5x6

30

400

2 x 4,036

8,072

400

3 x 1,054

3,162

400

467 x 4

1,868

400

Solve using the area model:

462 x 4

1,848

400

8x7

56

500

Every day at the bagel factory, Cindy makes 5 different kinds of bagels. If she makes 1444 of each kind, what is the total number of bagels that she makes?

7,220

500

One game system costs $2,038. How much will 4 game systems cost?

8,152

500

5,131 x 7

35,917

500

Solve using the standard algorithm:

2,348 x 6

14,088

500

12x8

96

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