7.85+2.34-0.85+4.86求简算!7.85+2.34-0.85+4.86求简算!
7.85+2.34-0.85+4.86求简算!=(7.85-0.85)+(2.34+4.86)=7+7.2=14.2
(7.85—0.85)+(2.34+4.86)=7+7.2=14.2