简便计算0.25*7.9*0.5

来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 01:27:15
简便计算0.25*7.9*0.5
x){ɾ/-|nMR>nI;z@.ighkY *.H̳g`dkoakoheoBE DH

简便计算0.25*7.9*0.5
简便计算0.25*7.9*0.5

简便计算0.25*7.9*0.5
0.25*0.5*8-0.25*0.5*0.1=1-0.125=0.875

0.25*7.9*0.5
=1/4*(8-1/10)*1/2
=1/8*(8-1/10)
=1-1/80
=79/80