商店有17支铅笔,卖了8支,还剩几支?*l0b,a2y.{2F5X7?0f5l,a
算式:提示1a'H-j1D1Y1@*l0b,a2y.{2F5X7?0f5l,a
答:还剩5p;A3v7r,T6u'_.P)C支。*l0b,a2y.{2F5X7?0f5l,a