一、一点体会化学计算永远面临着“思维求异”和“解法求优”的问题。对同一道计算题，运用不同的化学思想，从不同的角度去思考即可产生不同的解题思路。高考的计算题（特别是计算型选择题）往往隐含着巧解的思路，旨在考查学生基本计算知识的同时考查思维的变通性、灵活性和? First, a little understanding of chemical calculations is always faced with the “thinking differences” and “solutions for excellence.” For the same calculation problem, using different chemical ideas and thinking from different perspectives can produce different problem-solving ideas. The calculation questions (especially the computational multiple-choice questions) of the college entrance examination often imply a clever way of thinking. They are designed to examine students’ basic calculation knowledge while examining the flexibility, flexibility, and thinking of the thinking.