Thank you very much for viewing. [Overview] Revised Edition Chart Series: Mathematics III from Basics, Answer Key (List Price: 1,860 yen + tax) I used this in high school classes. I am selling this after storing it at home. [Condition] - The back cover of the answer key has my name written on it. (See image 2. I will correct it with a marker before shipping.) - There are no other writings besides the name. Please take a look at the images and consider purchasing if you understand the condition. #BlueChart