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 -
12 = 1
22 = 4
32 = 9
42 = 16
52 = 25
62 = 36
72 = 49
82 = 64
92 = 81
102 = 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 :

22 = 4 and 32 = 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.

12 = 1 and 92 = 81
Now we will find the sqare root matching with '841' between the selected above square roots
So, the selected value is 92