2x1
3x1
2x2
3x2
???
100

22 x 3

What is 66

100

234 x 2

What is 468

100

23 x 31

What is 713

100

123 x 7

What is 861

100

82 x 10

What is 820

200

35 x 3

What is 105

200

434 x 4

What is 1,736

200

31 x 22

What is 682

200

247 x 5

What is 1,235

200

42 x 20

What is 840

300

43 x 4

What is 172

300

782 x 6

What is 4,692

300

46 x 43

What is 1,978

300

537 x 7

What is 3,759

300

86 x 300

What is 25,800

400

68 x 5

What is  340

400

567 x 8 

What is 4,563

400

67 x 87

What is 5,829

400

767 x 6

What is 4, 602

400

320 x 4000

What is 1,280,000

500

89 x 7

What is 623

500

987 x 7

What is 6,909

500

89 x 96

What is 8,544

500

789 x 78

What is 61,542

500

4900 x 50000

What is 245,000,000

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