The grading standard of big questions is to divide big questions into several steps. If the steps are right, score them, and if there are mistakes, don't score them. The general answer is 2 points.
If the answer is wrong due to careless calculation in the previous step. You'll still get most of the points. If the formula is wrong at first, there is no score. Similarly, the formula is wrong, only the final answer is correct, and no points will be given.
Problem-solving strategy: break down the problem into a series of steps or small problems, solve some problems first, and solve as many as you can.
Extended data:
Content structure of a test paper on mathematics for postgraduate entrance examination;
Advanced mathematics, 56%
Linear algebra, 22%
Probability theory and mathematical statistics, 22%
Examination questions structure of the first volume of mathematics for postgraduate entrance examination;
8 multiple-choice questions, each with 4 points and ***32 points.
Fill in the blanks with 6 small questions, with 4 points for each question and 24 points for * *.
Answer 9 small questions (including proof questions), ***94 points.
Baidu Encyclopedia-One of the Mathematics Syllabuses for Postgraduates