Dr Sun's Maths store › Maths Olympiad theory building and problem solving Senior to Professional Image 1 of 1 Maths Olympiad theory building and problem solving Senior to Professional $275.00 Skeleton Draft version. Some content still only available on video but can be accessed from links in the book. Quantity: Add To Cart Added! Skeleton Draft version. Some content still only available on video but can be accessed from links in the book.