Instant purchase OK! Purchase without comment OK! Clear Mathematics III + Answer Key, published by Kenkyusha. - Title: Clear Mathematics III - Publisher: Kenkyusha Highlighter marks and writing present. ⭐️If there is a problem with the product, please comment before rating. Returns and refunds will not be accepted after rating, so please check the product carefully before giving a rating. Returns are not accepted for reasons such as "different from the image." Thank you for viewing.