| 10 | ÷ | 102 | + | 4 | ÷ | 447 10 | + | 6 | ÷ | 451 10 | + | ( | 331 5 | − | X | ) | ÷ | 637 5 | + | X | ÷ | 1000 | = | 61 100 |
| 方程左边 = | 5 51 | + | 40 447 | + | 60 451 | + | ( | 331 5 | − | X | ) | × | 5 637 | + | X | × | 1 1000 |
| = | 366205 1142383 | + | ( | 331 5 | − | X | ) | × | 5 637 | + | 1 1000 | X |
366205 1142383 | + | ( | 331 5 | − | X | ) | × | 5 637 | + | 1 1000 | X | = | 61 100 |
| 方程左边 = | 366205 1142383 | + | 331 5 | × | 5 637 | − | X | × | 5 637 | + | 1 1000 | X |
| = | 366205 1142383 | + | 331 637 | − | X | × | 5 637 | + | 1 1000 | X |
| = | 611401358 727697971 | − | 4363 637000 | X |
611401358 727697971 | − | 4363 637000 | X | = | 61 100 |
| - | 4363 637000 | X | = | 61 100 | − | 611401358 727697971 |