Used very little, in good condition. Areas written in pencil have been erased. Arithmetic problem books for 5th graders, exercise workbooks. - Title: Exercise Workbook Arithmetic 5th Grade, Volume 1 and 2 - Publisher: Yotsuya Otsuka - Series: Yosyu Series (Preparation Series) - Target Grade: 5th Grade - Format: Problem book Plus: 2022 edition Weekly Test Problem Book 5th Grade, Volume 1 Problem book & Answer and Explanation, 2 books Although it's from a while ago, please use it as a reference.