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The square root of a number, x, is the number that equals x when multiplied by itself.
The square root of 4 is 2, since 2 multiplied by itself equals 4.

## Numbers - Square Roots - In Depth - Math.com

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

Squaring, which we learned about in a previous lesson (exponents), has an inverse too, called "finding the square root." Remember, the square of a number is ...

## Numbers - Square Roots - First Glance - Math.com

www.math.com/school/subject1/lessons/S1U1L9GL.html

Finding the square root of a number is the inverse operation of squaring that number. Remember ... The perfect squares are the squares of the whole numbers .

## Square Root Calculator - Math.com

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

The Square Root Calculator will find the square root of the number you enter. ... Related Topic How to calculate square roots without a calculator ...

Mar 24, 2015 ... Finding the square root is easy for any perfect square under 100! You'll be ... Square root of ANY number instantly - shortcut math. - Duration: ...

## Calculate square root without a calculator - Homeschool Math

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

Since this method involves squaring the guess (multiplying the number times itself), it uses the actual definition of square root, and so can be very helpful in ...

## Finding Square Roots - Fact Monster

www.factmonster.com/ipka/A0932229.html

The easiest way to find a square root is to use a calculator, but you can do it without one. Here's one way, using 12 as an example of the squared number:.

## Square Root Calculator

www.squarerootcalculator.co/

Interactive square root calculator that can handle negative, imaginary, and complex numbers.

## Squares and Square Roots - Math is Fun

www.mathsisfun.com/square-root.html

"Squared" is often written as a little 2 like this: square root of 9 is 3. This says "4 Squared equals 16" (the little 2 says the number appears twice in multiplying) ...

## Square root of a number - Basic mathematics

www.basic-mathematics.com/square-root-of-a-number.html

This lesson will show you how to find the square root of a number.