Focus Gold Mathematics 2+B 4th Edition Shinko Shuppansha Keirinkan Price: - This is an unused item that has been disassembled unit by unit and rebound using binding tape. Clear file covers have been made. The answer key and explanations have also been disassembled, bound, and covered, and are inserted into the unit-by-unit booklets. The four books on the bottom left of the first photo are the exercises at the end of the book. My daughter, who was carrying Focus Gold to study in the self-study room, was complaining about her heavy backpack, so I made these. However, it took a long time to make them, and by the time they were finished, my daughter had moved on to the next step, so they were never used. The edges of the clear files have been rounded to prevent injury. I hope this will be helpful for students preparing for exams. The shipping method may be changed to Rakuraku Mercari Delivery. #book