论文部分内容阅读
一、列方程解应用题与算术解应用题的区别与联系用算术方法解应用题和列方程解应用题的主要区别在于解题思路与解题方法。算术法解应用题所列出的算式全是已知数,它是用已知表达未知,未知数(问题所求)是计算结果,算式不能直接反映题目中的数量关系。布列算式的思路一般是从所求问题出发,执果索因逆推而上,逐步寻找表达未知数的已知条件。
First, the column equation solution problem and the application of arithmetic solution the difference between the problem and the use of mathematical methods to solve the problem and the column equation solution The main difference lies in the problem-solving ideas and problem-solving methods. The arithmetic formulas listed in the application questions are all known numbers. It is calculated by using the known unknown and unknowns. The formula can not directly reflect the quantitative relationship in the subject. Barel's formula is generally based on the idea of asking the question, the implementation of the result of the inverse push up, and gradually find the unknown known conditions.