There is no shortcut unless you are a genius. But there are some college entrance examination questions that primary school students can work out, such as complex number operation, vector, solid geometry, triangle and conic curve.

These include:

Vector and conic curve can use special values to measure the answers with triangles in multiple-choice questions (just ask the primary school students who often participate in Olympic Mathematics);

Complex number operation is like doing elementary school olympiad;

Solid geometry can be made by solid vectors or traditional methods, and the fastest vector operation involves matrix operation in universities;

Probability problems need to be learned from life and combined with reasoning logic (this is made by reading more mystery novels);

Many "unsolvable" problems try to find answers.

Think about the above solution process by yourself! It's super easy to do the problem after you figure it out. When you are free, you can play chess and other chess games to exercise your thinking logic, and play basketball to increase the amount of oxygen (if you do too much, you will vomit and don't want to do problems for a long time, which is a bad sign). Don't do the last big question when doing the paper (if you want to do it all, the threshold of Tsinghua Peking University will have been trampled).

Still a word: do more and talk less, be diligent and practical. It is best not to have the idea of "this road is blocked, find another way".

Is math still fun?

(Students who took the college entrance examination in 2009)