Mathematics I + A from Basics, Content Learnable with Chart-Style Textbooks - Title: Mathematics I + A (Revised Edition) - Publisher: Kenkyusha Publishing - Condition: Used Selling due to shelf clearing. I couldn't find any writing, but please understand that this is a used item and that I am a non-professional in my inspection. Includes answer key. There is no major damage, but there are scratches and dents on the corners of the cover. The answer key has dents on the corners. Please check my profile before purchasing.