应用题中的已知条件是解答应用题的依据，题中的问题是解答应用题的思考方向。只要按照解题的一般规律，根据题意，找出已知和未知量间的关系，便能列式解答。例商店洗发液专卖柜的第一层货架上摆放１大瓶、１中瓶、５小瓶洗发液。第二层货架上摆放３中瓶、５小瓶洗发液。第三 The known conditions in the application questions are the basis for answering the application questions, and the questions in the question are the directions for thinking about the application questions. Just follow the general rules of problem solving, according to the ins and outs, find out the relationship between known and unknown, can formulate answers. Example store shampoo cabinet shelves placed on the first floor of a large bottle, a bottle, 5 vials of shampoo. The second floor shelves placed 3 bottles, 5 vials of shampoo. third