The second part of the intensive training series of the national high school mathematics league is the continuation of the intensive training series of the national high school mathematics league. It is specially written for readers who intend to participate in the national high school mathematics league. According to the specific requirements of the league exam syllabus, intensive training is carried out in chapters, involving algebra, number theory, combination and geometry. In the first episode, there are knowledge points in front of each chapter, which takes up a lot of space, resulting in insufficient questions, while in the second episode, it is all questions, which really realizes the original intention of "intensive training"; In addition, the second series supplemented the topic of "permutation and combination" and realized the full coverage of the knowledge points in the examination outline.

The second series of intensive training questions in the National Senior High School Mathematics League can be used as reference books for students preparing to participate in the National Senior High School Mathematics League, and it is also suitable for high school students who have not participated in the competition but have spare capacity to study.