题目内容
| 2002 | 123462-12345×12347 |
分析:把123462-12345×12347中的12345×12347转化成123462-1.
解答:解:
=
=
=2002;
| 2002 |
| 123462-12345×12347 |
=
| 2002 |
| 123462-(12346-1)×(12346+1) |
=
| 2002 |
| 123462-123462+1 |
=2002;
点评:本题运用平方差公式进行解答即可.
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