Don't do too many problems, do them. It is necessary to sort out a set of wrong questions to facilitate review before the exam. If you make fewer mistakes, you can get high marks. If you are good at math, I mean you are good at solving difficult problems. Be careful and do as mentioned above.

If your math ability is average or poor, then you need to do the paper a little systematically, and don't do it indiscriminately (I mean do it desperately), but do this paper, do 20 sets of papers, sort out what you can't do, understand it well and read more, and your ability will be flexible. It is not difficult to get high marks. The key is to spend time and energy.

That's it. I hope it's adopted.