Waseda Academy Arithmetic Grade 6 Backup Text & Answer/Explanation Collection - Not for Sale. There are no writings, but there are some stains due to wear and tear. This is a used item stored at home. There are some signs of use, such as folds and stains when opening the pages, and page curling. There are also some folded and curled parts on the pages. Please understand and agree to the used condition of this item, which has been stored at home, before purchasing. There are stains and tears on the cover (including the back cover and spine), and sides. There are also folds when opening the pages. Please check the images, including the table of contents. Please understand that the inspection and packaging are done by an amateur. Thank you for your understanding at this price.