Purchased about two years ago. Written on: * The first page of "Numbers and Expressions" * Three pages of "Sets and Propositions" * The first two pages of "Figures and Measurement" * The first three pages of "Quadratic Functions ①" There are parts where the writing makes it difficult to solve the problems. Please check the photos. "Quadratic Functions ②" and "Data Analysis" have no writing. Please understand that there is writing and that the book has been used before purchasing. If you have any questions, please feel free to comment ⟡.*