果园里有280棵桃树,是苹果树的4倍,苹果树有多少棵?*d)^8O0g/w3Y-H6K1z)U7T7R'|/U
算式:提示8e'F.z(^1C5}(k7L4I0[*d)^8O0g/w3Y-H6K1z)U7T7R'|/U
答:苹果树有,Z;A(|)`,~:z3[;P+S/C,W/?:l棵。*d)^8O0g/w3Y-H6K1z)U7T7R'|/U