If the answer has a root sign, don't choose; If the answer is 1, select; When all three answers are yes, choose the right one; When one is positive X and the other is negative X, choose between them: the question looks simple, so the answer is complicated, and vice versa; What to choose in the last question, what to choose in this question, three consecutive identical ones are not suitable for this article; Answer the question well and look at your eyes: if none of the above is practical, choose B.

Multiple-choice masking skills: fill in the blanks with inequality questions, optimize the special value method, choose the middle value to bring in, and choose the easy-to-get; If transcendental expressions appear in equations or inequalities, the combination of numbers and shapes takes precedence, and various functional models should be kept in mind, as well as the characteristics of each model.

1. Clear your mind.

When making multiple-choice questions in mathematics, we should first determine the difficulty and test sites of the questions, and make clear the concepts and key points involved in the questions. Then carry out classified discussion, formulate equations, construct graphs and other steps, thoroughly sort out the problems and make clear the thinking of solving them.

2. Troubleshooting options

When solving multiple-choice questions in mathematics, we often encounter some seemingly correct but wrong options, so we need to pay attention to exclude these wrong options. If you don't have a definite answer at hand, you can compare the options one by one by exclusion, find out the options that don't conform to the law or conclusion, and then seek the correct answer from the remaining options.

Find the law

Mathematics multiple-choice questions generally have certain regularity. When doing the questions, we should pay attention to the characteristics of the questions and find out the regularity. This method can help us find the correct answer faster and reduce the risk of blind guessing.

4. Pay attention to the details of solving the problem

In math multiple-choice questions, sometimes the answer lies in the details. Therefore, when answering multiple-choice questions, you need to pay attention to the key details such as the numerical range, symbols and unit identification corresponding to each option, especially the area, angle and coordinates.

Summary:

The skill of covering multiple-choice questions in mathematics college entrance examination is to improve the probability of guessing the correct answer by clearing up ideas, eliminating wrong options, looking for rules. Reasonable use of these skills can not only avoid wrong choices, but also improve the efficiency of answering questions and shorten the answering time. At the same time, it is suggested that candidates should fully review the basic knowledge and exercises before the exam, and combine theory with practice in order to better master the problem-solving skills of multiple-choice mathematics.