52✖️47➕55✖️52➖104简便方法?

日期:2022-04-02 06:32:55 人气:1

52✖️47➕55✖️52➖104简便方法?

52X47+55x52-104
=52x47+52x55-52x2
=52x(47+55-2)
=52x100
=5200
    A+
热门评论