I got 129 on my first math test, which was taken at the beginning of this year. If you have 50 days, I suggest you review the formulas and definitions in the book while doing the real questions. The so-called foundation is too broad. It can be said that every page of the review book is a foundation, and now it is the formulas, definitions and theorems you want to read. If your score is 100, it can't be decided by days. You can estimate your level by doing several sets of real questions. I have done the real questions twice over the years, and I did the last one last year. Every time I do a real question, I have to take time out and treat it like a real exam, so that I can grasp the time well. If I don't do this, you will find that the big questions behind me can't be done in the real exam at all. 50 days, if you set the true question of 1 in a few days according to my method, and then recite the formula and definition of this set of questions, you will understand the wrong question. You don't have to sort out definitions and formulas, just recite them directly, because there are only 50 days, and you have to review other subjects. It's absolutely too late to read the whole book again. Listen to me, you must do the real question! ! If you haven't done the real questions, don't take the exam, because you don't know the type and pertinence of the postgraduate entrance examination without the training of the real questions. How can you take the exam, right? You have seen the height of the two sides of the whole book before, which is not bad. There are only a few types of linearity and probability, and several formulas are exchanged back and forth, especially linear algebra. Do the real questions and you'll know what's going on! ! Finally, I wish you success in the exam! !