Thank you for viewing. Second Grade, Kyoiku Dohjinsha Wakaru Sansu (Understanding Arithmetic) - Volume 1 & 2 Set Kanji Drill - 1st Semester Calculation Drill - 1st Semester Set of 4 books. There is some pen marking on the back cover of Wakaru Sansu Volume 2 (see photo 2). There is some writing in the answers of the Calculation Drill (see photo 5). Please understand that these are items stored at home. Summer Vacation Winter Vacation Self-Study Home Study Drill Workbook Preparation Review Arithmetic Kanji Drill Snoopy