The years of 2004, 2009, 16, 18, 20 and 22 are more difficult, among which 16 and 2009 are more difficult to calculate, and 18, 20 and 22 are more difficult.

Supplementary information:

Postgraduate mathematics:

The focus of the postgraduate entrance examination is different according to your math one, math two and math three.

Mathematics I, advanced mathematics accounts for 56%, linear algebra accounts for 22%, probability theory and mathematical statistics account for 22%.

Mathematics II, advanced mathematics accounts for 78%, linear algebra accounts for 22%, and probability theory and mathematical statistics are not tested.

Mathematics III, advanced mathematics (or calculus) accounts for 56%, linear algebra accounts for 22%, and probability theory and mathematical statistics account for 22%.

Among them, the number two is the least. Engineering exams are generally Math I and Math II; The third examination of economics and management mathematics includes not only the first three unified examination papers, but also the mathematics (agriculture) of the enrollment unit and the self-designed science mathematics.

The math test is more comprehensive, with high numbers, line generation, introduction and difficult questions. Count two needs no introduction, and the topic is easier than count one. The number three exam is also very comprehensive, and the difficulty of the topic is not much simpler than the number one. Some people think that counting one is much more difficult than counting three, but it is not. We pay attention to different fields, so the difficulty cannot be compared.

The number one topic involves a wide range, and sometimes it requires thinking in images, and the difficulty is not low. Although the outline of the number three is less than the number one, the topic is very detailed and the difficulty is not as simple as imagined.