8.5 0.79-0.35 7.9 简算
问题描述：
8.5 0.79-0.35 7.9 简算
24小时之内!
答
(8.5-3.5)*(0.8-0.01) =5*0.8-5*0.01 =4-0.05 =3.95
8.5 0.79-0.35 7.9 简算
24小时之内!
(8.5-3.5)*(0.8-0.01) =5*0.8-5*0.01 =4-0.05 =3.95