Think Like a Maths Genius: The Art of Calculating in Your Head by Arthur Benjaman
£9.09
|
Secrets of Mental Math: The Mathemagician's Guide to Lightning Calculation and Amazing Mental Math Tricks by Michael Shermer
£6.99
|
The Mathematics of Oz: Mental Gymnastics from Beyond the Edge by Clifford A. Pickover
£10.44
|
Brainfit: 10 Minutes a Day for a Sharper Mind and Memory by Corinne L. Gediman
£12.99
|
Speed Mathematics: Secret Skills for Quick Calculation by Bill Handley
£7.49
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