In exams, questions are usually in a fixed position. You can skip directly without looking, and scan the simple questions before looking at the questions.

When practicing, we must pay more attention to problem-solving skills and methods. At present, the answers to most exercises are actually similar to a piece of shit, no matter how simple or complicated, they are all proved by a disgusting proof. Teachers also tell questions according to the answers, which is of little help to improve students' math skills. If you are not very interested in mathematics or have a poor foundation, you can practice some common problems.

If you have a good foundation, you can buy a copy of Lan Qi's Analysis and Solution of the Last Math Problem in the College Entrance Examination. Other people's analysis is quite in place. Some simple methods absolutely don't need complicated methods. You can look at his blog math 173. Although there are many questions above that have nothing to do with us, his method and skill column is really good.