一个40元，一个80元，买一个和共多少元？/f(|/u-r1w7u6F3A(y0j4^/\
算式：提示0R/|7G,U+v:r5V:w3t+Z.`*Y3j/f(|/u-r1w7u6F3A(y0j4^/\
答：买一个和共/K5r,w.Q+y;J5g9V/~8E8h.d.\:^2B元。/f(|/u-r1w7u6F3A(y0j4^/\