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Sunday Times Teaser 2551 – Take Nothing for Granted

by Victor Bryant

Published: 14 August 2011 (link)

In arithmetic, the zero has some delightful properties. For example:

ANY + NONE = SAME and X . ZERO = NONE In that sum and product, digits have been replaced with letters, different letters being used for different digits. But nothing should be taken for granted: here the equal signs are only approximations as, in each case, the two sides may be equal or differ by one.

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  1. Brian Gladman permalink

    This teaser is flawed since it should have only one answer but it has two (7146 and 7543).

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