Squaring of a number ending in 05

Squaring of a number ending in 05

We have observed and learned the method of squaring of a number of number ending in 5 in our previous post.
   What if the number ends with 05
Like 105 ,205, 705…?
   

Rule:-
  • Square the number other than 05.
  •Find the square of the first part of                  the given number.
• Affix /Place the first part of number after the square of number part.
•Atlast affix 05^2 =025 at the end .

Consider following examples.

Example 1:-
           205^2
             205^2 = (2/05)^2
                          =2^2/2/025
                         =42025
Example 2:-
             305^2
                     =3^2/3/025
                     =93025
Example 3:-
              805^2
                    =8^2/8/025
                    =648025

Let’s take a larger number this time.
         Example 4:-
                  1105^2 =
                            =   11^2/11/025
                            =121/11/025
                             =1221025 ( Here 11 is greater 10 therefore push it to next block).
        Example 5:-
                          1305^2 =
                            =   13^2/13/025
                            =169/13/025
                             =1703025

It is simple.

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Posted by Praveenkumar P K

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About Praveenkumar P Kalikeri

ABOUT US Hey,Thanks for dropping by .First I would like to Appreciate for your love towards the Mathematics Subject. My name is Praveenkumar Kalikeri. I'm an Engineering Student from Karnataka , India. My Passion for Mathematics , encouraged me to start this blog . I Started loving the Mathematics subject from my schooling days.I was greatly motivated by teachers, parents who always helped me .        Numbers have Beauty !! They fascinated me .. As we all know best method to try out something new is to study old theories , concepts , its drawbacks, etc. I ,myself Started learning Vedic Mathematics at age of 15. Here , I will share vedic maths tricks learned and modified by me in simple manner which will be useful in various competitive exams. "If You Believe , You Can Do".
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