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工程问题在算术中是一种重要的典型问题.这类问题可以分成两种:一种是属于整数运算范围,它属于归一问题,这里不打算谈.另一种是本文所要谈的,它属于分数运算范围,也就是一般所说的工程问题。很多学生学过工程问题之后,只会机械地依样画葫芦做一些有关的简单问题,遇到变了样的、曲折一些的问题,就无从下手.他们没有抓住问题的关键,对于任何一个数学问题,我们只要抓住问题的关键,就不难变复杂为简单。
Engineering problems are an important typical problem in arithmetic. Such problems can be divided into two types: one is the range of integer operations, it belongs to the normalization problem, and it is not intended to be discussed here. The other is what this article will talk about. Belonging to the range of fractional operations, which is generally referred to as engineering problems. After many students have studied engineering problems, they will only mechanically do a few simple questions. When they encounter problems that have become distorted and meandering, they cannot start. They did not grasp the key to the problem. Math problems, we just need to grasp the key issues, it is not difficult to become complicated.