Shakuntala Devi (4 November 1929 – 21 April 2013) was an Indian mathematician, writer and ... ISBN 978-81-222-0399-8; Mathability: Awaken the Math Genius in Your Child (New Delhi: ... See "Tricks of Lightning Calculators", in Mathematical Carnival, by Martin Gardner, Knoff, 1975 ... Download as PDF · Printable version ...
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