This is a set of Chart Series (Yellow Chart) Mathematics I+A and Mathematics II+B, an essential bible for students who want to build solid skills from the basics to advanced levels. • Covers from textbook level to basic entrance exam questions: Problems are arranged in stages from basic examples to practical exercises, allowing for efficient learning. • Ideal for University Entrance Common Test preparation: Includes a "Practical Edition" that corresponds to the new curriculum, making it the perfect content for developing the "ability to answer" in order to achieve high scores on the Common Test. • Overwhelmingly easy-to-understand explanations: The key points of the solutions are clearly shown, allowing you to deepen your understanding without getting stuck, even when studying independently. This set is highly recommended for high school freshmen and sophomores who want to solidify their math basics, as well as for students preparing for exams who want to review everything. [Shipping] We will take waterproof measures, carefully pack the items, and ship them promptly. Immediate purchase is welcome! #ChartSeries #Mathematics #YellowChart #UniversityEntranceExam #CommonTest #HighSchoolMathematics #MathIA #MathIIB #Books #StudyGuides #BulkPurchaseWelcome