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化学计算题是一类较综合的题型,需要正确的思维和解题技巧,一般从分析题目、写出化学方程式、列式计算几个步骤入手．在做题时, 有的同学往往满足于一般求解,不注意解题方法的讨论和最佳解题方案的选择,这就影响了解题能力的提高．一个计算题往往有几种解法,这些解法虽然都能得到正确的结果,但其中必有思路简明、步骤简化、运算简单、减少出错机会的解法．运用这样的解法就属于巧解．
The chemical calculation problem is a kind of more comprehensive problem type, which requires correct thinking and problem solving skills. Generally, it begins with analyzing the topics, writing out the chemical equations, and calculating several steps. When doing questions, some students are often satisfied with the general solution, do not pay attention to the method of solving problems and the choice of the best solution to the problem, which affects the ability to understand the problem. A calculation problem often has several solutions. Although these solutions can all obtain correct results, there must be a simple solution, simple steps, simple operation, and a solution to reduce the chance of error. The use of such a solution is a clever solution.