3.42乘76.3加57.6乘7.63加91.8乘 - 知识问答

3.42乘76.3加57.6乘7.63加91.8乘2.3.7怎么算,要简便运算,急!谢谢大家啦!

6个回答

3.42乘76.3加57.6乘7.63加91.8乘2.3.7
=7.63x(34.2+57.6)+91.8x2.37
=7.63x91.8+91.8x2.37
=(7.63+2.37)x91.8
=10x91.8
=918

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