Multiple by 6-10

6

100

6x2

12

200

12+6

18

300

30-6

24

400

30+6

36

500

6x9

54

7

100

7x3

21

200

21+7

28

300

42-7

35

400

7x7

49

500

7+9

63

8

100

8x4

32

200

16+8

24

300

16-8

8

400

49+7

56

500

8x9

72

9

100

9x3

27

200

27+9

36

300

54-9

45

400

63+9

72

500

9x9

81

10

100

10x2

20

200

30+10

40

300

20-10

10

400

50+10

60

500

10x10

100