用简便方法计算100x100/10l

日期:2021-07-09 09:53:40 人气:1

用简便方法计算100x100/10l

100x100/10l
=(101-1)x100/10l
=101x100/10l-1x100/10l
=100-100/10l
=99又1/10l
    A+
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