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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| 31 + 5 × 5 = | 9 × 2 - 14 = | 52 - 3 × 8 = | 7 × 5 + 40 = |
| 5 × 7 - 13 = | 4 × 3 + 67 = | 4 × 6 - 16 = | 8 × 4 + 15 = |
| 17 + 9 × 9 = | 5 × 7 + 58 = | 98 - 9 × 3 = | 53 - 5 × 2 = |
| 9 × 8 - 54 = | 5 × 8 - 33 = | 5 × 6 + 63 = | 64 + 6 × 5 = |
| 80 - 8 × 9 = | 60 - 8 × 6 = | 65 + 3 × 8 = | 48 + 8 × 6 = |
| 86 - 7 × 4 = | 97 - 5 × 2 = | 91 - 9 × 9 = | 2 × 8 - 13 = |
| 3 × 6 + 35 = | 8 × 2 + 41 = | 5 × 5 + 38 = | 4 × 3 + 37 = |
| 2 × 5 + 28 = | 7 × 9 + 24 = | 32 + 7 × 9 = | 36 - 6 × 6 = |
| 9 × 3 + 63 = | 3 × 5 + 15 = | 7 × 4 + 48 = | 22 + 2 × 7 = |
| 78 - 5 × 2 = | 29 + 2 × 7 = | 10 + 3 × 8 = | 8 × 4 + 49 = |
| 9 × 3 - 25 = | 8 × 5 - 10 = | 3 × 7 + 63 = | 33 - 2 × 8 = |
| 6 × 6 + 38 = | 7 × 6 - 34 = | 74 - 4 × 6 = | 2 × 7 + 69 = |
| 6 × 9 + 19 = | 55 + 2 × 5 = | 9 × 8 + 13 = | 6 × 7 + 36 = |
| 2 × 8 - 13 = | 2 × 9 + 42 = | 2 × 8 - 10 = | 43 + 2 × 9 = |
| 5 × 5 - 12 = | 3 × 6 + 34 = | 7 × 7 + 21 = | 51 - 6 × 8 = |
| 15 + 3 × 7 = | 48 - 7 × 3 = | 95 - 7 × 7 = | 9 × 6 + 32 = |
| 8 × 3 + 55 = | 8 × 2 - 13 = | 6 × 9 - 47 = | 7 × 5 - 10 = |
| 9 × 7 + 23 = | 51 - 4 × 5 = | 9 × 4 - 17 = | 3 × 5 - 14 = |
| 9 × 6 - 11 = | 2 × 9 - 16 = | 86 - 7 × 6 = | 6 × 5 + 12 = |
| 43 + 4 × 8 = | 5 × 3 + 26 = | 8 × 3 + 37 = | 5 × 3 - 10 = |
| 76 - 3 × 7 = | 7 × 2 - 10 = | 6 × 8 + 29 = | 8 × 6 - 36 = |
| 4 × 9 + 41 = | 89 - 6 × 3 = | 6 × 3 - 17 = | 2 × 8 + 48 = |
| 51 + 5 × 8 = | 24 + 9 × 4 = | 5 × 7 + 33 = | 63 - 8 × 5 = |
| 66 - 4 × 8 = | 6 × 3 + 81 = | 9 × 7 + 13 = | 4 × 8 + 44 = |
| 8 × 4 + 23 = | 83 - 7 × 4 = | 8 × 8 + 30 = | 42 - 4 × 7 = |
消防员爸爸