There his interest in mathematics was greatly encouraged by the mathematics teacher and after completing his School Certificate in 1946 he concentrated entirely on that subject. Hilton writes in that at Rugby:
May kanyang interes sa matematika ay malaki hinihikayat sa pamamagitan ng matematika ang mga guro at matapos makumpleto ang kanyang School Certificate sa 1946 siya puro buo na sa paksa. Hilton magsusulat sa na sa Rugby: