Summary is a written material that reviews, analyzes and evaluates a certain period, a certain project or a certain work after it has come to an end or been completely completed, so as to draw lessons and some regular knowledge from it. It enables us to find mistakes and correct them in time. Let's write a summary carefully together. Have you figured out how to write a summary? The following is a summary of the quick problem-solving methods of 202 1 adult college entrance examination mathematics multiple-choice questions. Welcome everyone to learn and refer, I hope it will help you.
First, the direct method:
The mathematical problem-solving skills of multiple-choice questions in adult college entrance examination are based on the conditions of problem setting, through correct operation, reasoning or judgment, directly draw conclusions, and then compare them with the selected branches to make choices. Solving problems in this way requires a solid mathematical foundation.
Second, the screening exclusion method,:
When there are many unknowns or complex relationships in the topic setting conditions, it is not easy to break through from the front, but through analysis, reasoning, calculation and judgment, incorrect options can be eliminated by screening method, so as to draw correct conclusions. The idea of screening method is to deny three conclusions, and the premise of using screening method is "unique answer", that is, one and only one of the four options is correct.
Third, the secondary conclusion method:
Through some important conclusions in mathematics, or the important characteristics of mathematical content, complex operations can be avoided.
Fourth, the special case method:
Some adult college entrance examination multiple-choice questions involve general mathematical problems, but the choices provided are often contradictory, that is, any two choices cannot be established at the same time, so it is difficult to strictly deduce such multiple-choice questions. At this time, we might as well retreat from general problems and seek special problems, and adopt special numerical values, special graphics and special positions suitable for conditions to analyze, which can often simplify the thinking process, reduce the difficulty and get a solution quickly.
Five, the number and shape combination method:
For some mathematical problems with geometric background, if we can construct corresponding figures for analysis, we can often get vivid and intuitive answers by combining numbers with shapes to help numbers.
VI. Verification method of combination of numbers and shapes:
That is, the answer given in the selected branch or its special value is put into the stem for verification, so as to determine the correct answer. Sometimes, through preliminary analysis, it is more likely to judge that one or several options are correct. When solving problems by verification method, if the replacement order can be determined according to the meaning of the questions, the speed of solving multiple-choice questions in mathematics can be greatly improved. Can save time.
Seven, estimation method:
Because the adult college entrance examination multiple-choice questions provide the only correct choice, the answer does not need a process. So we can guess, reason and estimate. This can often reduce the amount of calculation and naturally strengthen the level of thinking.
Eight, characteristic analysis method:
By analyzing the relationship between stem and stem, we can dig out various characteristics of the topic, such as structural characteristics, numerical characteristics, range characteristics, graphic characteristics, symmetry characteristics, overall characteristics and so on. , so as to find the law and quickly identify the authenticity.
Nine, the use of extreme thoughts:
Limit thought is a basic and important mathematical thought. When a variable is infinitely close to a quantity, it can be regarded as this quantity. For some multiple-choice questions, if you can use extreme thinking properly, you can often make the process simple and vivid.
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