This is a social studies practice problem set. The answer sheet is detached, but it's a separate sheet. There's a name written on the back, but the inside is completely unused and in pristine condition. Please understand that this is a home-stored item. Price includes tax: 1540 yen If you'd like to purchase multiple items and the total thickness is within 3 cm, I can offer a discount on shipping costs, so please leave a comment. #PracticeProblemSet #YotsuyaOtsuka #4thGrade #SocialStudies #YoshuSeries