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The Turing Tests

Expert Number Crunch Puzzles

Fore. Dermot Turing
New Paperback

Postscript summary

Inspired by Alan Turing and published in association with the Turing Trust, this collection of over 270 number-crunch puzzles is arranged in ascending order of difficulty and designed to sharpen numerical skills. Starting with a given number, solvers work through a series of calculations, applying mathematical instructions step by step to reach a final answer.
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