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www.wikihow.com/Calculate-a-Square-Root-by-Hand

Find the largest perfect square that's less than or equal to this chunk, then take the square root of this perfect square. This number is n . Write n in the top right space and write the square of n in the bottom right quadrant.

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

If you know a square root already to a few digits, such as sqrt(2)=1.414, a single cycle of divide and average will give you double the digits (eight, in this case). In addition to giving a way to find square roots by hand, this method can be used if all you have is a cheap 4-function calculator.

en.wikipedia.org/wiki/Methods_of_computing_square_roots

The dividend is zero. This is an exact square root, 53. Find the square root of 2809. Set down the number in groups of two digits. The number of groups gives the number of whole digits in the root. Put a colon after the first group, 28, to separate it.

www.youtube.com/watch?v=nUyLnjgGumg

Finding the square root is easy for any perfect square under 100! You'll be able to calculate squares faster than ever and amaze everyone with your utter genius! To find the square root of non ...

www.math.com/students/calculators/source/square-root.htm

The Square Root Calculator will find the square root of the number you enter.

www.mathsisfun.com/square-root.html

A Fun Way to Calculate a Square Root There is a fun method for calculating a square root that gets more and more accurate each time around: a) start with a guess (let's guess 4 is the square root of 10)

johnkerl.org/doc/square-root.html

How to manually find a square root Here is an almost-forgotten art: one that, with the advent of electronic calculators, will likely survive to the twenty-first century only on paper and in the memories of oldsters.

www.wikihow.com/Find-a-Square-Root-Without-a-Calculator

Use division to find the square root. To find the square root of a whole number, you could also divide the whole number by numbers until you get an answer that is the same as the number you used to divide the whole number.

www.math.com/school/subject1/lessons/S1U1L9DP.html

Finding square roots of of numbers that aren't perfect squares without a calculator. 1. Estimate - first, get as close as you can by finding two perfect square roots your number is between. 2. Divide - divide your number by one of those square roots. 3. Average - take the average of the result of step 2 and the root. 4.

www.khanacademy.org/.../v/understanding-square-roots

We're asked to find the square root of 100. Let me write this down bigger. So the square root is this big check-looking thing. The square root of 100. When you see it like this, this means the positive square root.