how do you do roots without a calculater?

Question

please help!

Answer 1

Finding roots without a calculator

Click on the URL below for additional information concerning finding roots.

www.nist.gov/dads/HTML/squareRoot.html

www.homeschoolmath.net/teaching/square-root-algorithm.php

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Answer 2

could you elaborate on this? i don't really understand what you mean. but, like if you have the square root of 144, you could factor. (i will use ^ to represent square root of)
^122= ^12 * ^12= ^6*^2*^6*^2, ^3*^2*^2*^3*^2*^2,
^2*^2= 2, and you have that twice, so it is 2*2*^3*^3,
^3 * ^3= 3, so you have 2*2*3= 12.

Answer 3

you guesstimate... =)

square 1 = 1
square 2 = 1.somethng
square 3 = 1.something larger than square 2
square 4 = 2
...
square 8 = square 4 * square 2 = 2.something (you know this has to be less that 3 because that would be square 9)

Answer 4

It's too hard to explain without graphics so try this site, it explains it very well.

http://www.nist.gov/dads/HTML/squareRoot.html