SAPIX Arithmetic Basic Problem Collection, in excellent condition with almost no writing. Writing on 2 pages, see photos (I tried to look carefully, but I apologize if I missed anything) I used a notebook, so there are signs of the book being opened. - Title: Arithmetic Basic 60 Problems (2) [Ratio] - Title: Arithmetic Basic 60 Problems (3) [Figures] - Title: Arithmetic Basic 60 Problems (5) [Plane Figures 2] - Publisher: SAPIX - Condition: Almost no writing Thank you for looking.