a x b
aa x b
division
missing factor
repeated addition
100

4 x 6

24


100

10 x 2

20

100

12 divided by 6

2

100

4 x ___ = 28

7

100

15+15+15+15

60

200

6 x 8

48

200

11 x 8

88

200

24 divided by 8

3

200

____ divided by 8 = 9

72

200

22+22+22+22+22

110

300
7 x 9
63
300

13 x 5

65

300

49 divided by 7

7

300

44 divided by ____ = 22

2

300

13+13+13+13+13+13

78

400

9 x 3

27

400

18 x 9

162

400

120 divided by 12

10

400

____ divided by 6 is 12

72

400

16+16+16+16

64

500

9 x 9

81

500

32 x 5

160

500

132 divided by 11

12

500

____ divided by 2 is 11

22

500

17+17+17+17

68

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