x 2
x 3
x 4
x 6
x 8
100

10

what is 2 x 5

100

9

what is  3 x 3

100

12

what is 4 x 3

100
12

what is 6 x 2

100

80

what is 10 x 8

200

42

what is 2 x 21

200

18

what is 3 x 6

200

16

what is 4 x 4

200

60

what is 6 x 10

200

16

what is 8 x 2

300

38

what is 2 x 19

300

27

what is 3 x 9

300

20

what is 4 x 5

300

36

what is 6 x 6

300

64

what is 8 x 8

400

28

what is 2 x 14

400

24

what is 3 x 8 

400

28

what is 4 x 7

400

54

what is 6 x 9

400

72

what is 8 x 9

500

34

what is 2 x 17 

500

15

what is 3 x 5

500

32

what is 4 x 8

500

42

what is 6 x 7

500

96

what is 8 x 12