Goukaku Deru Jun Mathematics 4th Edition & Bunkei mo Hamaru Suugaku Set Goukaku Deru Jun: No noticeable scratches or stains (used a few times) Bunkei mo Hamaru Suugaku by Asuki Yokoyama: Like new (read only once) These two books can be used for your child's exam preparation, or for parents and children to explore the "whys" of the world through mathematics. ✨ If you wish to purchase them separately, please comment.