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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| 367 + 171 = | 250 + 518 = | 582 - 258 = | 504 + 162 = |
| 582 + 395 = | 912 - 470 = | 573 + 341 = | 922 - 583 = |
| 166 + 751 = | 340 - 281 = | 543 + 296 = | 616 - 583 = |
| 573 - 226 = | 295 + 102 = | 204 + 678 = | 963 - 358 = |
| 664 - 259 = | 250 - 169 = | 754 - 256 = | 756 + 177 = |
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