It has a major use in the formula for roots of a quadratic equation; quadratic fields and rings of quadratic integers, which are based on square roots, are important in algebra and have uses in geometry. Square roots frequently appear in mathematical formulas elsewhere, as well as in many physical laws.

​What is it used for?

a number which produces a specified quantity when multiplied by itself.​​

Square Root

What is a square root and why is it important?​​

How to find the square root of a number

Step 1. Separate your number's digits into pairs

Step 2. Find the largest integer n whose square is lesser than or equal to the leftmost number (or pair)

Step 3. Subtract the number you just calculated from the leftmost pair

Step 4. Drop down the next pair

Step 5. Fill in the blank spaces in the right quadrant

Step 6. ​Subtract the number you just calculated from the current number on the left.

Step 7. ​Repeat step 4

S​tep 8. Repeat step 5 and 6

Step 9. ​Continue to calculate digits

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​Examples of how to do Square Root

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