屋子里有10把椅子，老师开会借走了3把，还剩几把椅子？7i2\9s6Q6s+s8G/E+`
算式：提示*e4Z(L+M8A3d-S9y7~:z/o7i2\9s6Q6s+s8G/E+`
答：还剩:B8q;U*B-^/@-C;A/l.D2]/_把椅子。7i2\9s6Q6s+s8G/E+`