465*463/464怎么简便运算
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465*463/464怎么简便运算
465*463/464怎么简便运算
465*463/464怎么简便运算
465*463/464
=465*(1-1/464)
=465*1-465*1/464
=465-465/464
=465-2+463/464
=463又463/464
465*463/464
=(464+1)(464-1)/464
=(464*464-1)/464
=464-1/464