停车场有12辆,开走了5辆,还剩多少辆?3U0^8E9\/g0L9y2y.B2T;{5K/t
算式:提示8g,S;l/p*m3U0^8E9\/g0L9y2y.B2T;{5K/t
答:还剩3q0u,P1o1P(A-n3R辆。3U0^8E9\/g0L9y2y.B2T;{5K/t