x10
x9
100

what is 5x0

50

100

what is 5x9

45

200

what is 9x10

90

200

what is 8x9

72


300
what is 6x10

60

300

what is 3x9

27

400

what is 3x10

30

400

what is 6x9

54

500

what is 4x10

40

500

what is 9x9

81

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