Doporučení iOS aplikace Fast Math - Tips & Tricks 1.2

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Fast Math - Tips & Tricks 1.2

59 lessons to calculate faster! Learn the secrets of mental arithmetic and become the fastest calculator in the west. Tips to add, multiply, subtract, divide, square or even check the rightness of a calculation, give a boost to your brains! Train by answering as many questions as you can in one…

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