17/5×18-17/5等于多少,算是

日期:2021-07-23 13:00:23 人气:1

17/5×18-17/5等于多少,算是

17/5×18-17/5
=17/5×18-17/5×1
=17/5×(18-1)
=17/5×17
=57.8
    A+
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