To find the square root of a number, take that number to the one-half power.
Ex: 4^1/2 = 2
The best way to find a square root is simple guess and check. Because not all square roots are whole numbers, it is advisable to use either a calculator or square root table to find more complicated square roots.
Give the Square Root Calculator a try:
http://www.calculatorslive.com/Square-Root-Calculator.aspx
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A positive number has two square roots, that is, there are two solutions to an equation like x2 = 100. The "principal square root" refers to the positive solution.
Multiplying a number by itself is called "squaring". Ex. "What is the square of 5?" Answer: 25 And when you calculate, from the square (25) what the original number was, it is called "finding the square root." Ex. "What is the square root of 25?" Answer: 5.
The square root of 500,000 is 707.1067811865476. This is calculated by finding the square root of each digit in the number (500,000) and then combining them to get the final answer. The square root of 500 is approximately 22.3606797749979, and the square root of 1,000 is 31.6227766016838. Multiplying these two values gives the square root of 500,000.
Easy. Say I was going to do ____ \/ 2 =1.41.... So then you square the left side 2=1.41.... And then you square the other side 2=2 (When you square root a number and you square it, you end up with the original number)
The inverse operation of squaring a number is finding the square root of that number. In mathematical terms, if you square a number x, the result is x^2. The inverse operation would be taking the square root of x^2, which gives you the original number x. For example, if you square 3 (3^2 = 9), the square root of 9 is 3.