有意思的数字运算组合
大家注意观察下面的数字组合,很有意思吧
1 | * | 8 | + | 1 | = | 9 |
12 | * | 8 | + | 2 | = | 98 |
123 | * | 8 | + | 3 | = | 987 |
1234 | * | 8 | + | 4 | = | 9876 |
12345 | * | 8 | + | 5 | = | 98765 |
123456 | * | 8 | + | 6 | = | 987654 |
1234567 | * | 8 | + | 7 | = | 9876543 |
12345678 | * | 8 | + | 8 | = | 98765432 |
123456789 | * | 8 | + | 9 | = | 987654321 |