This is a mathematics textbook and textbook guide for the third year of junior high school. There are no markings or writing in them. I purchased them for home study, but I hardly used them, so they are in good condition. - Title: Mathematics World 3 - Guidebook: Textbook Guide - Publisher: Dainippon Tosho - Grade: 3rd Year - Contents: Comprehensive coverage of the textbook's content Thank you for looking.