169 Astonishing Numerical Challenges
Mathemagic by Raymond Blum
Book DescriptionThis enormous volume of maths puzzles will test how sharp readers are with numbers and provide hours of fun. There are mind bogglers of every type - from amazing 'magic' number tricks to beautiful geometric designs - and plenty of them too! This starts with puzzles that are fairly easy and builds up to ones that are really challenging. Tricks and hints provide help along the way that will make the reader look like a whiz!
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Book DetailsISBN: 9781402788086
Classification: Sudoku & number puzzles
Format: Paperback (170mm x 140mm x mm)
Publisher: Sterling Publishing Co Inc
Publish Date: 10-Mar-2011
Country of Publication: United States
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