7 4 3 5 2=?6 3 2 4 8=?8 2 5 1 7=?三个算是都要用上+ - × ÷结果一致

问题描述:

7 4 3 5 2=?
6 3 2 4 8=?
8 2 5 1 7=?
三个算是都要用上+ - × ÷
结果一致

7 + 4 - 3 - 5 - 2 = 1 6 - 3 + 2 + 4 - 8 = 1 8 / 2 + 5 - 1 - 7 = 1 7 - 4 * 3 + 5 + 2 = 2 6 - 3 - 2 * 4 / 8 = 2 8 / 2 + 5 - 1 * 7 = 2 7 - 4 + 3 - 5 + 2 = 3 6 + 3 - 2 + 4 - 8 = 3 8 - 2 + 5 - 1 - 7 = 3 7 ...