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对应的思考方法是解题时经常用到的一种思考方法,所谓“对应”就是在两类事物之间建立某种联系,以实现未知向已知的转化。解决分数、百分数的实际问题,主要是要处理好“数量”与“分率”之间的对应关系。【例1】家电商场上午售出同种型号的空调5台,下午售出同样的空调3台,上午比下午多收货款7460元,每台空调的售价是多少元?分析与解:要知道每台空调的售价,首先想到的是售出的台数和所对应的货款,但是题中找不到此类对应。我们知道上午比下午多
Corresponding thinking method is often used to solve a thinking method, the so-called “correspondence” is to establish some kind of connection between two types of things, in order to achieve the unknown to the known transformation. The solution to the actual problem of scores, percentages, mainly to deal with the corresponding relationship between “number ” and “fractional rate ”. [Example 1] home appliances store morning sold the same type of air conditioning 5 units, the same afternoon sold 3 air conditioners, morning more than the afternoon receipt of 7460 yuan, how much is the price of each air conditioner? Analysis and Solution: To know the price of each air conditioner, the first thought is the number of units sold and the corresponding payment, but the title can not find such correspondence. We know more in the morning than in the afternoon