Complete set of 12 math study guides for junior high school students Series Name: Mathematics for High School Number of books: 12 (April 2021 - April 2022) Thank you for viewing! I purchased these on Mercari, but I'm selling them because I didn't use them. There is almost no writing, and the contents are in very good condition. The covers have no noticeable stains or scratches (*´˘`*) Price reduction ○ Instant purchase ○ High school entrance exam