停车场上有45辆车，到了中午少了30辆。停车场还有几辆车？8{'b8e:o;Q,w1S's6j(W0r
算式：提示-E*X;~8T0X5m;S8{'b8e:o;Q,w1S's6j(W0r
答：停车场还有/H7u*r;x6{6?+M;z辆车。8{'b8e:o;Q,w1S's6j(W0r