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10:16
YouTube
MindYourDecisions
How To Calculate Square Roots - Numerals That Changed Math Forever
There's an incredible method to extract the square root of a perfect square in your head. MIT Entrace Exam Arithmetic 1876 WayBackMachine: https://web.archive.org/web/20190404065722/https://libraries.mit.edu/archives/exhibits/exam-entrance1876/arithmetic1876.html Square root method Burning Math http://burningmath.blogspot.com/2013/09/extracting ...
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