Basic aspects: First of all, the basic knowledge is excellent, the knowledge in the textbook, formula theorems, typical exercises and necessary conclusions must be memorized, and the knowledge points and exercises taught by the teacher in class must be mastered, otherwise the exam will only be passive water and will not go far.
Practice at ordinary times: It is not enough to have a general understanding of knowledge. Only when you can do problems can you say that you really understand knowledge, and when you do problems, you can concentrate people's spirit and flexible people's thinking. Moreover, most people can't play their normal level during the exam, so just play it normally. So the exam is actually a reflection of the usual homework. If you can do your homework carefully, accurately and quickly, you will naturally answer the questions correctly in the exam. If you have spare capacity, it will be better to treat exercises outside your homework with a serious attitude.
Improvisation: The usual seriousness determines the average level of our exams, but some small details during the exams may make our grades fluctuate greatly. For example, remind yourself before the exam: fill in the personal information, paint the answer sheet, choose the exam questions, and slowly get the questions right once. Don't dwell on the questions you are not good at, you must get all the points you deserve, and write clearly the units and decimal points. ...
In short, if you want to be careless in the exam, you have to ask yourself not to be careless at ordinary times and develop good habits. Examination is a reflection of a person's usual state. Never heard of careless exams. I wish you perseverance and willpower to overcome temptation, so as to develop a good habit of being meticulous!