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85问答库 > 19x46 219x55-219,用简便算法。怎么算？

19x46 219x55-219,用简便算法。怎么算？

2025-04-08 01:54:58

推荐回答（2个）

回答1：

简便计算过程方法如下
解:19x46+219x55-219
=874+(55-1)×219
=874+54×219
=874+11826
=12700

回答2：

这些题怎么能简便算，怎么算好算就怎么算，这个非常简单，你用219×54就行。如果你也认同我的方法，请给予采纳，谢谢。

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