如果10+9+8×7÷□+6-5×4-3×2=1,那么□=______

如果10+9+8×7÷□+6-5×4-3×2=1,那么□=______.
2025-05-18 08:30:44
推荐回答(1个)
回答1:

10+9+8×7÷□+6-5×4-3×2=1
            19+56÷□+6-20-6=1
                    56÷□-1=1
                  56÷□-1+1=1+1
                      56÷□=2
                  56÷□×□=2×□
                       2×□=56
                    2×□÷2=56÷2
□=28.
故答案为:28.