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From a renowned Mathemagician, a fun, accessible, and comprehensive guide to the simple techniques of doing quick caclulations in your head, including addition, substraction, multiplication and division of large sums, square roots, "psychic math" tricks, and memory tips.
- Format: Pocket/Paperback
- ISBN: 9780307338402
- Språk: Engelska
- Antal sidor: 224
- Utgivningsdatum: 2006-08-01
- Förlag: Three Rivers Press