0.61*0.25+0.18*1/4+0.21*百分之二十五简便计算
来源:学生作业帮助网 编辑:六六作业网 时间:2024/09/08 15:03:05
0.61*0.25+0.18*1/4+0.21*百分之二十五简便计算0.61*0.25+0.18*1/4+0.21*百分之二十五简便计算0.61*0.25+0.18*1/4+0.21*百分之二十五简便
0.61*0.25+0.18*1/4+0.21*百分之二十五简便计算
0.61*0.25+0.18*1/4+0.21*百分之二十五简便计算
0.61*0.25+0.18*1/4+0.21*百分之二十五简便计算
0.61×0.25+0.18×1/4+0.21×25%
=0.61×0.25+0.18×0.25+0.21×0.25
=(0.61+0.18+0.21)×0.25
=1×0.25
=0.25
0.25*(0.61+0.18+0.21)
=0.25*(0.61+0.39)
=0.25
0.25=1/4=25%
0.61*0.25+0.18*1/4+0.21*百分之二十五
=0.61*0.25+0.18*0.25+0.21*0.25
=0.25*(0.61+0.18+0.21)
接下来自己算,很容易的