Najpierw obliczamy:

29 - 13 = 16, bo 16 + 13 = 29

42 + 16 = 58

58 + 29 = 87

42 - 28 = 14, bo 28 + 14 = 42

13 - 2 = 11, bo 2 + 11 = 13

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88 - 32 = 56, bo 56 + 32 = 88

36 - 12 = 24, bo 24 + 12 = 36

56 - 36 = 20, bo 36 + 20 = 56

20 - 12 = 8, bo 12 + 8 = 20

20 - 8 = 12, bo 12 + 8 = 20

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7 + 19 = 26

14 - 3 = 11, bo 11 + 3 = 14

19 + 11 = 30

26 + 30 = 56

30 + 14 = 44

56 + 44 = 100

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100 - 49 = 51, bo 49 + 51 = 100

27 - 19 = 8, bo 8 + 19 = 27

51 - 27 = 24, bo 24 + 27 = 51

49 - 24 = 25, bo 25 + 24 = 49

24 - 8 = 16, bo 16 + 8 = 24