The amount of questions should be constantly adjusted with the review progress;
Early stage: suggestion10-15.
When I first brushed 660, it took about half an hour to solve the problem and understand the analysis. After brushing 10- 15, almost one morning has passed. Do it as well as you can.
Mid-term: About 25 questions are recommended.
After you have accumulated basic knowledge and mastered certain problem-solving skills, you should constantly improve the speed of doing problems. It is best to keep this speed and brush the whole book, and when doing the problem, mark how long it takes to complete the task every day, so as to check the efficiency of doing the problem intuitively.
Late stage: there is no upper limit.
At this stage, it is recommended to brush the book two or three times, instead of starting the whole book from scratch, only brush the key topics that have been marked before (the marking method will be provided below), and skip the topics to be done.
Ultra-detailed brushing strategy:
In fact, there is no need to worry too much about brushing the questions. You can solve what you think, and then slowly move closer to the correct problem-solving ideas.
The progress of brushing the questions in the early stage is slow, or the basic knowledge is not well mastered, or the summary of the questions is not in place. If it's the latter, listen to Mr. Sigh slowly.
In the process of doing the problem, whenever you have a little idea, don't look at the answer in advance.
Understand what the question asks, first write down the solutions you can think of step by step, or the theorems and formulas you think can be used, and then use the answers to find out what the question is.