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跟着消防员爸爸学习C++编程与算法（请备注算法学习）
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| 59 + 13 = | 17 + 82 = | 26 + 17 = | 39 + 23 = |
| 70 - 41 = | 73 - 47 = | 100 - 99 = | 80 - 42 = |
| 62 + 29 = | 100 - 43 = | 52 + 48 = | 50 + 48 = |
| 48 + 42 = | 98 - 77 = | 56 + 26 = | 95 - 92 = |
| 47 + 43 = | 71 - 64 = | 45 + 36 = | 44 + 38 = |
| 87 - 68 = | 12 + 57 = | 39 + 31 = | 43 + 18 = |
| 80 - 71 = | 84 - 65 = | 31 + 67 = | 88 + 12 = |
| 12 + 55 = | 74 - 37 = | 74 - 67 = | 90 - 78 = |
| 12 + 81 = | 27 + 25 = | 98 - 83 = | 81 - 25 = |
| 58 - 37 = | 30 + 16 = | 87 - 15 = | 24 + 61 = |
| 20 + 32 = | 20 - 18 = | 49 + 11 = | 52 + 43 = |
| 27 - 19 = | 99 - 90 = | 95 - 41 = | 92 - 85 = |
| 77 + 19 = | 21 + 33 = | 37 + 30 = | 70 - 24 = |
| 20 - 11 = | 83 - 45 = | 47 + 45 = | 44 + 35 = |
| 20 + 72 = | 62 + 26 = | 96 - 84 = | 53 - 15 = |
| 76 - 65 = | 48 + 44 = | 40 + 36 = | 45 - 31 = |
| 50 + 13 = | 18 + 14 = | 65 - 42 = | 88 - 76 = |
| 66 - 25 = | 99 - 96 = | 28 + 70 = | 69 - 68 = |
| 46 - 20 = | 29 + 21 = | 48 + 47 = | 20 + 39 = |
| 20 + 59 = | 45 - 24 = | 23 - 21 = | 98 - 97 = |
| 86 - 60 = | 82 - 74 = | 59 + 27 = | 18 + 71 = |
| 49 + 22 = | 60 + 38 = | 84 - 69 = | 73 + 14 = |
| 91 - 63 = | 86 - 51 = | 47 + 37 = | 86 - 57 = |
| 46 + 35 = | 74 - 53 = | 100 - 81 = | 76 + 24 = |
| 12 + 83 = | 49 - 47 = | 38 - 14 = | 91 - 84 = |