Show:
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Vertical
Area
Base Ten
FOIL
100

25*10

What is 250

100

12*11

What is 132

100

10*10

What is 100

100
14*13

What is 182

100

14*16

What 224

200

12*12

What is 144

200

24*14

What is 336

200

21*21

What is 441

200
25*17

What is 425

200

26*19

What is 494

300

15*14

What is 210

300

36*19

What is 684

300

44*48

What is 2112

300

40*19

760

300

61*63

What is 3843

400

100*10

What is 1000

400

99*99

What is 9801

400

98*98

What is 9604

400

52*32

What is 1664

400

81*90

What is 7290