FFun with NumbersFun with Numbersde Peter PatillaMateriasNumber conceptMathematical recreationsMaze puzzlesNumber concept, juvenile literatureMathematical recreationsMaze puzzlesEdiciones (1)Fun with Numbers (1995)Walker Books · ISBN 9780744533637Más obras de Peter PatillaAdding (Guide to Good Mathematics)At Home withCircles, Cylinders and Spheres (Shapes)