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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| 9 × 2 - 12 = | 47 + 6 × 3 = | 3 × 8 - 20 = | 38 + 8 × 5 = |
| 6 × 6 + 52 = | 18 + 9 × 5 = | 28 + 7 × 9 = | 8 × 3 - 18 = |
| 6 × 5 + 31 = | 80 + 2 × 9 = | 2 × 7 + 21 = | 96 - 7 × 9 = |
| 2 × 6 + 74 = | 2 × 7 - 12 = | 48 - 3 × 8 = | 8 × 9 - 64 = |
| 39 + 5 × 5 = | 7 × 7 - 11 = | 34 + 6 × 9 = | 55 - 7 × 4 = |
| 12 + 6 × 4 = | 4 × 6 + 61 = | 38 - 3 × 9 = | 38 + 9 × 5 = |
| 12 + 6 × 9 = | 47 + 7 × 4 = | 68 - 3 × 9 = | 44 + 4 × 6 = |
| 4 × 5 - 16 = | 8 × 2 - 13 = | 81 - 8 × 9 = | 85 - 6 × 6 = |
| 33 + 3 × 7 = | 5 × 8 + 25 = | 26 + 5 × 9 = | 53 - 4 × 4 = |
| 9 × 2 + 44 = | 4 × 7 - 18 = | 9 × 2 - 12 = | 2 × 7 - 10 = |
| 21 + 9 × 4 = | 30 - 4 × 7 = | 3 × 6 - 10 = | 3 × 4 + 20 = |
| 18 + 5 × 4 = | 4 × 5 - 16 = | 9 × 9 + 10 = | 8 × 2 + 45 = |
| 9 × 4 - 15 = | 5 × 5 + 19 = | 8 × 8 + 21 = | 90 - 6 × 9 = |
| 84 - 7 × 6 = | 15 + 5 × 3 = | 6 × 6 + 11 = | 15 + 8 × 2 = |
| 87 - 7 × 7 = | 6 × 7 + 16 = | 5 × 2 + 59 = | 22 + 6 × 8 = |
| 5 × 6 + 17 = | 4 × 6 - 13 = | 35 + 3 × 4 = | 9 × 9 + 15 = |
| 7 × 5 - 26 = | 2 × 7 - 10 = | 71 + 6 × 3 = | 83 - 7 × 8 = |
| 2 × 7 - 12 = | 14 + 9 × 7 = | 79 - 5 × 4 = | 13 + 7 × 9 = |
| 8 × 4 + 43 = | 8 × 8 - 49 = | 2 × 7 + 23 = | 52 - 2 × 9 = |
| 8 × 9 - 61 = | 8 × 5 - 12 = | 3 × 7 + 70 = | 8 × 6 + 15 = |
| 5 × 7 - 31 = | 20 - 8 × 2 = | 86 - 8 × 3 = | 2 × 9 - 17 = |
| 67 - 5 × 9 = | 87 + 2 × 5 = | 2 × 5 + 18 = | 7 × 6 - 41 = |
| 80 - 8 × 3 = | 4 × 8 - 29 = | 8 × 2 - 15 = | 9 × 3 + 68 = |
| 5 × 4 - 16 = | 2 × 5 + 87 = | 30 + 3 × 7 = | 7 × 5 + 54 = |
| 23 + 6 × 3 = | 4 × 6 - 22 = | 41 + 6 × 5 = | 76 - 7 × 9 = |
消防员爸爸