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Related Facts
100

10 + 10 =

20

100

18 + 50 =

68

100

22 + 4 =

26

100

16 + 60 =

76 - 60 =

76

16

200

13 + 4 =

17

200

60 + 23

83

200

45 + 13 =

58

200

61 + 30 =

91 - 30 =

91

61

300

17 - 7 =

10

300

91 + 5 =

96

300

32 + 50 =

82

300

64 + 20 =

84 - 20 = 

84 

64

400

13 - 2 =

11

400

22 + 6 = 

28

400

12 + 3 = 

15

400

36 + 10 = 

46 - 36 =

46

10