My suggestion is, unless you really have time, you can study Olympic Mathematics. Otherwise, do more in-depth questions like the finale of the senior high school entrance examination. A friend said earlier, "Many competition questions in junior high school are topics to be learned in senior high school ... which is very helpful for the college entrance examination". Yes, many of the competition questions in junior high school are from high school knowledge, and some of them are obsession in junior high school. The former is naturally learned in high school, and when you get to high school, you will find that those are no longer a problem for high school students; As for the latter, you can study after class, and don't take up the study time of mathematics and other subjects.

When I was in middle school, I also took part in math competitions, physics competitions and chemistry competitions. Mathematics and chemistry also won the first prize in the city. But I just do some questions in the outline, such as the finale and the depth questions in the outline. At that time, our school didn't advocate drilling Olympic numbers. Besides, with a solid foundation, the study of difficult problems will get twice the result with half the effort; On the contrary, the foundation is not firm, and the study of difficult problems is half the effort!