跟着消防员爸爸学习C++编程与算法（请备注算法学习）
欢迎咨询
| 1000 + 400 = | 4100 - 100 = | 5800 - 800 = | 1600 - 600 = |
| 2900 - 2000 = | 4500 - 4000 = | 5000 + 200 = | 8900 - 8000 = |
| 5800 - 800 = | 3800 - 800 = | 500 + 3000 = | 4000 + 100 = |
| 3700 - 3000 = | 3000 + 100 = | 2000 + 500 = | 3700 - 700 = |
| 200 + 1000 = | 5000 + 100 = | 300 + 1000 = | 5000 + 100 = |
| 5800 - 5000 = | 1800 - 1000 = | 8900 - 900 = | 200 + 5000 = |
| 3000 + 500 = | 7900 - 900 = | 3800 - 3000 = | 9900 - 900 = |
| 1600 - 1000 = | 2000 + 100 = | 4000 + 100 = | 600 + 2000 = |
| 7600 - 600 = | 5800 - 5000 = | 300 + 5000 = | 500 + 2000 = |
| 5000 + 300 = | 500 + 3000 = | 400 + 1000 = | 7600 - 7000 = |
| 4100 - 4000 = | 2900 - 900 = | 7900 - 7000 = | 400 + 1000 = |
| 500 + 1000 = | 500 + 1000 = | 6000 + 200 = | 4500 - 500 = |
| 1800 - 800 = | 100 + 4000 = |
消防员爸爸