Expanded Form
Partial Product
Area Model
Standard Algorithm
Any Method
100

234

200+30+4

100

64 x 2

= (2x60)+(2x4)

= 120 + 8

= 128


100

24x7

total area= 168

100

41x 5

205

100

640 x 8

5,120

200

573

500+70+3

200

903 x 4

=(4x900)+(4x3)

= 3600 + 12

= 3612

200

472 x 8

total area=3,776

200

418 x 7

2,926

200

927 x 2

1,854

300

8,647

8000+600+40+7

300
551x 6

=(500x6)+(50x6)+(1x6)

= 3000+ 300+ 6

= 3,306

300

128 x 9

total area=1,152

300

305 x 8

2,440

300

159 x 7

1,113

400

235,867

200,000+30,000+5,000+800+60+7

400

2,345 x 7

=(2000x7)+(300x7)+(40x7)+ (5x7)

= 14000 + 2100 + 280 + 35

= 16,415

400

3,286 x 8

total area=26,288

400

3,418 x 6

20,508

400

1,695 x 8

13,560

500

80,705

80,000+700+5

500

6,128 x 4 

=(6000x4)+(100x4)+(20x4)+ (8x4)

= 24000+ 400+ 80+ 32

= 24,512

500

5,671 x 6

total area=34,026

500

7,205 x 4

28,820

500

2,864 x 9

25,776