First, the problem is not quantity, but quality.
Many students who are reviewing in grade three or grade three usually do a lot of brushing activities. But in the process of brushing questions, one thing is often forgotten. The problem is not quantity but quality. Some of the questions they tested were just the same knowledge points, but in different forms. When you do these questions, if you don't think about them, you won't realize that they all test the same knowledge. When you realize that you are taking the same knowledge point, then sort out the knowledge points and review them, and then summarize the routines of these questions, so that you can do this kind of questions in the future.
Second, we should also pay attention to rest when brushing the questions.
After finishing a kind of knowledge topic, you must find ways to rest your brain, such as eating a candy and listening to music for a while, or watching variety shows for a while. In short, don't keep your brain running at high speed, keep thinking. People will feel tired in the end. If you don't do well in the end, your mind will easily collapse, because after all, you have made a lot of efforts and the result is still so bad. Therefore, we must know how to summarize and reflect on the knowledge points in the topic, and then give ourselves a certain rest time.
Third, exercise.
Many students who have been brushing questions have neglected exercise. In fact, moderate exercise can not only adjust your mentality, but also give your brain a good rest. There are also scientific experiments that show that exercise is beneficial to the improvement of brain power. So when you do math problems and write math problems in the future, you have to leave these math problems for exercise, or go out to play, and then come back and rethink. When you do other things, come back and look at these math problems. Maybe you will have new ideas.