# Square root in just 3 second

## Find square root up to '4' digit number.

#####
Find square root of **'841'**.

### STEP 1 :

First we have to know about these square roots to solve the above value.

Let's say it CUBELIST -

1^{2} = 1

2^{2} = 4

3^{2} = 9

4^{2} = 16

5^{2} = 25

6^{2} = 36

7^{2} = 49

8^{2} = 64

9^{2} = 81

10^{2} = 100

### STEP 2 :

Now Split **'841'** from the tens digit like this

##### VALUE ONE = 8 and VALUE TWO = 41

### STEP 3 :

Let's take VALUE ONE and Compare it with the above SQUARELIST and find out in which of the 2 SQUARELIST it lies in between.

Those selected SQUARELIST are :

##### 2^{2} = 4 and 3^{2} = 9

So, the first digit of the cube value will be **2**.

### STEP 4 :

Now we will find VALUE TWO by compareing it between the SQUARELIST and the selected square roots are.

##### 1^{2} = 1 and 9^{2} = 81

Now we will find the sqare root matching with **'841'**between the selected above square roots

So, the selected value is

**92**