3.25*0.625+6.25*0.625+50%*62.5%

来源:学生学帮网 编辑:学帮网 时间:2024/06/17 02:52:34

3.25*0.625+6.25*0.625+50%*62.5%

3.25*0.625+6.25*0.625+50%*62.5%
=3.25*0.625+6.25*0.625+0.5*0.625
=(3.25+6.25*+0.5)*0.625
=10*0.625
=6.25