# Often asked: How To Find Square Root Of A Number Quickly?

## How do you find the square root of a number by hand?

Take the number you wish to find the square root of, and group the digits in pairs starting from the right end. For example, if you want to calculate the square root of 8254129, write it as 8 25 41 29. Then, put a bar over it as when doing long division.

## How do you find the square root of a number without a calculator?

1. Examples.
2. Finding square roots of of numbers that aren’t perfect squares without a calculator.
3. Example: Calculate the square root of 10 ( ) to 2 decimal places.
4. Find the two perfect square numbers it lies between.
5. Divide 10 by 3.
6. Average 3.33 and 3. (
7. Repeat step 2: 10/3.1667 = 3.1579.

## What is the square of 1 to 30?

Square, Cube, Square Root and Cubic Root for Numbers Ranging 0 – 100

Number x Square x2 Square Root x1/2
28 784 5.292
29 841 5.385
30 900 5.477
31 961 5.568

## Is there a formula to find square root?

The product property of square roots states that for any given numbers a and b, Sqrt (a × b) = Sqrt (a) × Sqrt (b). Because of this property, we can now take the square roots of our perfect square factors and multiply them together to get our answer. In our example, we would take the square roots of 25 and 16.

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## What is the shortcut key for square root?

The Alt code for the symbol for the Square root is Alt +251 or 221A, then Alt+X. Follow these three simple steps to attach the symbol using the Alt code: – Position the pointer in the place where you want the square root symbol inserted. – Press and hold down the Alt key and type 251 from the numeric keypad.

## How do you find the root value?

The square root of 3 is denoted by √3. The square root basically, gives a value which, when multiplied by itself gives the original number. Hence, it is the root of the original number. Table of Square Root.

Number Square Root (√)
8 2.828
9 3.000
10 3.162
11 3.317

## IS 400 a perfect square?

400 is a perfect square. Because 20 * 20 = 400.

## What is a square root of 11?

List of Perfect Squares

NUMBER SQUARE SQUARE ROOT
8 64 2.828
9 81 3.000
10 100 3.162
11 121 3.317

## How do you solve a perfect square root?

If a perfect square ends with a 4, then the unit’s digit of its square root has to be either 2 or 8. If a perfect square ends with a 5, then the unit’s digit of its square root is definitely 5. If a perfect square ends with a 6, then the unit’s digit of its square root has to be either 4 or 6.