Some multiple-choice questions are adapted from calculation questions, application questions, proof questions and judgment questions. This kind of problem can directly proceed from the conditions of the problem, use the known conditions, related formulas, axioms, theorems and rules, and draw the correct conclusion through accurate operation, rigorous reasoning and reasonable verification, so as to determine the method of choosing branches.

2. Screening method

The essence of solving multiple-choice questions in mathematics is to get rid of the false and keep the true, abandon the wrong answers that do not conform to the meaning of the questions, and find the correct conclusions that conform to the meaning of the questions. We can narrow the choice by screening out some conclusions that are easy to judge and irrelevant, and then get the correct answer from the remaining conclusions. If there is only one conclusion after screening out the problems, it is the option.

3. Special value method

Some multiple-choice questions are difficult to solve directly by conventional methods. It is often very simple to choose some special cases for analysis, or to choose some special values for calculation, or to change the general form into a special form with specific values instead of letter parameters, and then make a judgment.

4. Verification method

By observing, analyzing and judging the test questions, each selected branch is substituted into the stem one by one for verification, or a special value is appropriately selected for verification, or other verification means are adopted to judge whether the selected branch is right or wrong.

5. Mirror image method

In the process of answering multiple-choice questions, you can draw a sketch according to the meaning of the question, and then refer to the practice, shape, position and nature of the graphic, and synthesize the characteristics of the image to draw a conclusion.

6. Heuristic method

For questions with strong comprehensiveness and many choices, if you want to be clear, you can establish geometric models and algebraic structures according to the meaning of the questions, and then try and choose by mistake, and pay attention to the flexible use of the above methods.