Optional course of vision 2- 1 2-2 2-3. Learn calculus, ellipse, probability binomial. There are still required courses to be completed. It seems that I have to learn the counting principle. I can't remember clearly. As for the elective part, I contacted you to buy an additional math problem for the college entrance examination. It's a book with a kraft paper cover. It's awesome. I graduated and threw away a lot of things. If it is summer vacation, review what you have learned before, because you have learned at least 120 points in mathematics with 200 points.

It's not particularly important that you didn't complete the required courses. If you must study the scheme, I suggest you buy a fuss and an all-around version. Although there are several, the topic is better than the whole. The topics are also separate, and there are also comprehensive trainings. The key is to answer in detail.