3又3/525又2/5+37.96又2/5

来源：学生作业帮助网编辑：六六作业网时间：2024/12/26 19:38:17

3又3/5*25又2/5+37.9*6又2/53又3/5*25又2/5+37.9*6又2/53又3/5*25又2/5+37.9*6又2/53又3/5*25又2/5+37.9*6又2/5=3.6*25.

3又3/5*25又2/5+37.9*6又2/5
3又3/5*25又2/5+37.9*6又2/5

3又3/5*25又2/5+37.9*6又2/5
3又3/5*25又2/5+37.9*6又2/5=3.6*25.4+37.9*6.4
=(10-6.4)*25.4+37.9*6.4
=254+(37.9-25.4)*6.4
=254+12.5*6.4
=254+12.5*8*0.8
=254+100*0.8
=254+80
=334