问题标题:
5/8*370+625*0.64-6.25简便运算
问题描述:
5/8*370+625*0.64-6.25简便运算
刘立钧回答:
5/8*370+625*0.64-6.25
=0.625*370+6.25*(64-1)
=6.25*(37+63)
=625
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