Yes, you can. Wan Wei is not too expensive, is it? Books with tens of dollars are characterized by more money. Of course, this is also an advantage (automatic identification of QR code). This is the catalog classification of Wan Wei mathematics, which is particularly clear and very clear. If you are in the third grade, I suggest you buy it. If I remember correctly, it should be 300 pages, five to ten pages a day, and it will be finished in a month or two. Not too much, actually not too much. I made it at home during the epidemic. This was used for half a month. Everything can only help you find your weaknesses in all directions. If you have finished all the questions, you already know where your weakness is, but in fact, after you have finished all the questions, you will naturally break your weakness. The main thing is to find the weak points. Secondly, if you know what you don't know, you can buy it and break through the difficulties.