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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| 14 × 50 = | 80 × 90 = | 80 × 50 = | 85 × 30 = |
| 90 × 50 = | 86 × 40 = | 44 × 40 = | 53 × 60 = |
| 62 × 10 = | 55 × 80 = | 34 × 90 = | 58 × 80 = |
| 84 × 20 = | 45 × 70 = | 95 × 30 = | 46 × 70 = |
| 46 × 70 = | 70 × 60 = | 65 × 20 = | 100 × 10 = |
消防员爸爸