In fact, five or three is very good. At that time, I also used the full set of five three in high school. You can choose the more representative ones, mainly to choose your own weaknesses to strengthen training. Geography, back, and biology still need to find out the knowledge points to do something.
Math was done four times, the first time for a semester, and then it was fast. After that, it is mainly to review and consolidate. Mathematics pays attention to the cultivation of the four major mathematical ideas, not the amount of questions.