Like 20 18, the difficulty is moderate.

20 19 the national average score of the mathematics test questions for postgraduate entrance examination is as follows:

Mathematics -65.69, the difficulty coefficient is 0.438, which is too difficult.

Mathematics II 7 1.87 The difficulty coefficient of 0.479 is slightly higher.

Mathematics ⅲ76.80 has a moderate difficulty coefficient of 0.5 12.

According to the stage, according to some characteristics, we can be divided into the following five stages:

1、 1987- 1996

Calculate a (volume1&; Volume 2) consists of four chapters, namely, test height (the chapters covered are consistent with the current syllabus), line generation, probability of random events and probability, (multidimensional) random variables and their distribution, and numerical characteristics, excluding the law of large numbers, central limit theorem, and mathematical statistics.

1997-2003

In recent years, there have been good questions in the senior high school entrance examination, focusing on two years, 1998 and 2003. In the past two years, there have been many topics on No.1 and No.2, which are very difficult.

2004-20 15

From the average score, the difficulty of 2009-20 15 is basically stable, especially the difficulty of 201-2013 is relatively simple.

4、20 16-2020

In recent three years, the order of mathematics difficulty for postgraduate entrance examination from low to high should be 202 1, 20 19, 2020, 202 1, which is the simplest one in recent five years. Since 2020, the examination center will no longer give the average score publicly, so it is impossible to obtain statistical data. However, it is recognized that it is difficult to take the postgraduate entrance examination in 2020.