99 Maths Puzzlesde Sam SmithMateriasPuzzlesPuzzles, juvenile literatureMathematical recreationsScientific recreationsLogic puzzlesEdiciones (1)99 Maths Puzzles (2015)Usborne Publishing, Limited · inglés · ISBN 9781409584605Más obras de Sam SmithTo be like John Clare1996Four fieldsWhy bother?Individual Service Funds