草地上有鸭14只，鸡的只数比鸭的3倍还多6只，鹅比鸡少30只。草地上有鹅多少只？6z,Y2K'h(N*[+C4d
算式：提示*`+O1N8W(U(t'v5d7v;p6R*a2D6z,Y2K'h(N*[+C4d
答：草地上有鹅9i*](H5P;^只6z,Y2K'h(N*[+C4d