SAPIX 5th Grade Arithmetic Basic Training SAPIX Basic Training for Junior High School Entrance Exams Full set of 12 books for one year It is recommended to do one page every day for a year, as it will help you to solidify your skills with a considerable amount of practice. There are answers written in the booklets. It seems there are inconsistencies, with some pages completed and some not. There is also some staining, please check the photos. Returns and cancellations are not possible after purchase due to the nature of the product, which can be copied. We do not offer individual sales. Please understand that this is a used item that a child has used and has been stored at home before purchasing. Shipping method may be changed as appropriate.