First of all, the wrong question set must record the original questions, which can be copied by hand, and of course, you can be lazy to cut and paste the original questions.

Learn to classify problems. You can copy it for a while first, and then classify it if there are many wrong questions. Wrong questions can be classified by knowledge points or by problem-solving methods. This will help you remember the knowledge points, as well as the corresponding questions and solutions.

You must read the wrong questions again and again. It's a waste of time not to read the wrong questions. The wrong questions must be read over and over again, and it is better to write them several times, which is more conducive to memory.