Because his answer to this question has a whole page, it is difficult for you to come up with it at all, so use this required question to give some important dividing lines. Then, if you brush all the formulas and questions in the last math question in time, you may not be able to do it.

If you have to brush the questions, it is actually very important to lay a solid foundation. For mathematics, I think it is necessary for you to do some problems, because in this way, you can exercise your thinking, solve problems faster and get rid of carelessness.