Square Roots

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Square Roots

Post  BCase on Thu Feb 19, 2009 5:56 am

If you've ever wondered how to calculate square roots by yourself without guessing, this is the website for you! Here is the url:


Scroll down to 'Finding Square Roots Using an Algorithm' to find the method. After you have figured it out, use the method to find the answer to this math question:

What is the square root of 10? Round to the nearest thousandth.
(Hint: You will need to calculate the square root to four digits, and then round)

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Re: Square Roots

Post  Archis on Fri Feb 20, 2009 7:17 am

Interesting method. Personally, I memerize sqrt(2) for isoceles triangles, sqrt (3) for 30-60-90 triangles, and sqrt(5) for the golden ratio.

For any square roots higher, I would just use a calculator. (Mainly square roots above 10 are only presented in calculator rounds of MathCounts)

Anyways, this is an extremely efficient method for more than 2 digit numbers. Thanks for sharing. Very Happy

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