1. Multiple-choice questions: Multiple-choice questions can be solved by various methods, such as direct method, special value method, exclusion method, verification method, graphic method, hypothesis method, and hands-on operation method (e.g. discount, quantity, etc.). ). Be wary of the "or" option in multiple-choice questions to see which one to choose.
2. Fill-in-the-blank questions: There are generally two situations in the fill-in-the-blank questions, one is to know the conditions and conclusions, and the other is to give only the conclusions. For the case of known conditions and conclusions, we can first list the equations or inequalities according to the known conditions, and then solve the unknown; For the case where only conclusions are given, reasoning can be carried out according to the given conditions.
3. Problem solving: To solve a problem, you generally need to look at the question first, make clear where the problem is, and then analyze and answer according to what you have learned. In the process of solving problems, various methods can be used, such as collocation method, factorization method, algebraic deformation method and so on.