猪圈里有15只小猪，被卖掉了5只，还剩多少只小猪？8}7z,g0g9e*w0l,f2B
算式：提示1f;K(G(V4_'c.{;E;A4W'x8}7z,g0g9e*w0l,f2B
答：还剩)c1E-r;p0^*t只小猪。8}7z,g0g9e*w0l,f2B