4.86×0.16 48.6×0.084用简便方法

日期:2021-03-29 02:01:19 人气:1

4.86×0.16 48.6×0.084用简便方法

4.86×0.16+ 48.6×0.084
=4.86×(0.16+0.84)
=4.86
    A+
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