Yotsuya Otsuka Yosho Series Exercise Workbook, 4th Grade, Science, Complete Set (2 Volumes). Used three years ago. There are some lines here and there, but it was used with care, so overall it's clean and I think it can still be used. The "Answers and Explanations" booklet had answer sheets, but the ones that were used have been cut out. Please consider it only for viewing the answers. My child has finished their entrance exams and passed with flying colors, so I'm looking for someone who can use these. How about using them to test your child's abilities? These are items that a child has used, so please understand. Retail price: 1980 yen per book