Question

how to find square root of any number easily?

Answer 1

I am usually habitual to use long division method. Get started and practice more

Answer 2

for finding the square root of a number there are different methods
1 - by guessing the numbers
2 - by factorising the numbers
3 - by factorising (to get approx exact square root for difficult numbers)

  
    3 -  first group numbers as pair from right
       -  find the perfect square from the first pair and subtract the answer from the first pair
       - write down the next pair aside the remains of the first then write the double of the first answer got  on the left 
       -  on example two forty .............( a particular number) x ...................(the same particular number) = 225                                                                                                        here;    45 x 5 = 225
       - then subtract this number from the other number , if we get zero as in the example it is a perfect square and it will get an perfect squre root ; if it isnt zero and we get remainder we can add 00 just as we add 0 in division and continue the same procedure  , then we will get approx value of the square root ( as decimals )