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Tag: mental arithemtic

Posted on May 18, 2017March 12, 2017

Square root in 3 seconds – math trick – YouTube

As  a maths tutor, I’m always on the look out for little tricks to help people solve calculations more quickly. I like this video on how to find the square root of a number in your head.

Square root in 3 seconds – math trick – YouTube.

Related posts: multiplying 2 digit numbers by 11     finding the square of numbers ending in 5     finding the square of 2 digit numbers

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