1 |
1×2 |
1 |
2×3 |
1 |
3×4 |
1 |
1999×2000 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
3 |
1 |
4 |
1 |
1999 |
1 |
2000 |
1 |
2000 |
1999 |
2000 |
1999 |
2000 |
(-2)2×(-1)4-|-12|÷[-(
| ||
-22×(-
|
2 |
3 |
3 |
4 |
4 |
5 |
5 |
6 |
1 |
2 |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
1997 |
8 |
15 |
6 |
25 |
(-2)3×(-1)1998-|-12|÷[-(-
| ||||
(-1)÷(-
|
24690 |
123462-12345×12347 |
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