求一个数比另一个数多（少）百分之几的问题在工农业生产和日常生活中有着广泛的应用，故此知识属于教学重点。而这类问题中，提出问题的方法多属于“省略型”句式，即“比较量”和“标准量”比较隐蔽，学生理解起来多感困难。所以如何进行“多（少）百分之几问题”的教学很有 The problem of seeking a number more than a few (less) percent has a wide range of applications in industrial and agricultural production and in daily life. Therefore, knowledge belongs to the teaching focus. Among these kinds of problems, the methods of asking questions are mostly “omission” sentences, that is, the comparison amount and the standard amount are more subtle, and the students are more difficult to understand. So how to carry out “more (less) a few percent of the problem,” the teaching is very good