65×25+225×5用简便方法计算怎么算?

如题所述

简便计算过程如下
65×25+225×5
=65×5×5+225×5
=325×5+225×5
=(325+225)×5
=550×5
=2750
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第1个回答  2020-07-06
=65×25+45×5×5
=65×25+45×25
=(65+45)×25
=(100+10)×25
=100×25+10×25
=2500+250
=2750本回答被网友采纳