how to find the square of a number from 30-70 easily

<div dir="ltr" style="text-align: left;" trbidi="on"> hi ,<br /> I am prakash back gaon with my second tutorial.<br /> here I am going to make you learn how to find the the square of a number between 30 and 70 easily.<br /> whats in between 30  and 70 ?<br /> its 50 and we are going to take this number as our most important value.<br /> lets see how .<br /> firstly we find the square of 54<br /> guys bring out your calculators and simply do ity using your calculator<br /> you get 2916.<br /> now we use our rule .<br /> how much more is 54 from 50 ---- its 4<br /> so take 25 add four to it for the first two digit<br />  for the send two digits sqaure 4 and place it there<br /> let me show you<br /> <span style="font-family: "Courier New", Courier, monospace;">                      (25+4)(4square)=2916</span><br /> <span style="font-family: "Courier New", Courier, monospace;"><span style="font-family: Arial, Helvetica, sans-serif;">let me take one more example</span> </span><br /> lets us take  59 square<br /> how much more from 50? ans---- 9<br /> so take 25 add 9<br /> then for next two digits square the difference<br /> that's 81<br />                                                     <span style="font-family: "Courier New", Courier, monospace;">(25+9)(9square)=3481</span><br /> thats it.<br /> now for a number lower that 50<br /> take 47 . how much less than 50? thats 3<br /> do just the opposite for 1st two digit means subract from 25<br /> we get 22<br /> the process for next two digits remain same thats square the number .<br />                                                     <span style="font-family: "Courier New", Courier, monospace;">(25-3)(3 square)=2209</span><br /> <span style="font-family: "Courier New", Courier, monospace;"><span style="font-family: Arial,Helvetica,sans-serif;">if you take 61 you will get  </span>121 <span style="font-family: Arial, Helvetica, sans-serif;">as the last two values and 36 as first two. but we can only have 4 digits so add one to 36 and make 37</span></span><br /> <span style="font-family: "Courier New", Courier, monospace;"><span style="font-family: Arial, Helvetica, sans-serif;"> that means you get 3721</span></span><br /> <span style="font-family: "Courier New", Courier, monospace;"><span style="font-family: Arial, Helvetica, sans-serif;">any questions? use comments box </span></span><br /> <br /> .<br /> <br /> <br /> <br /></div>

how to find the square of a number from 30-70 easily

hi , I am prakash back gaon with my second tutorial. here I am going to make you learn how to find the the square of a number between 30 and 70 easily. whats in between 30  and 70 ? its 50 and we are…

Read more »

how to calculate the power of a given number in a factorial

<div dir="ltr" style="text-align: left;" trbidi="on"> Hi<br /> I am Prakash and am I here with my First magic maths tutorial .<br /> We will calculate the number of a digit in a given factorial number.<br /> like- number of 2's in 20! or number of 3's in 20!<br /> so lets start<br /> <br /> this is a very simple technique you just need to divide the number recursively or continuosly till we get 1 and then simply add all of them .<br /> we are providing a picture for that<br /> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVVQ6SmRDcQHA9msxYpxsht3ocg9cvUhsuK-Sx0iTXh82aJ6gYtFa-G7G4BmMAJTqL-7HxRLI5ucVEv3B7td6ra_mvxvR0NpfeZHNrud3O56wJSufoKlhc-7-Ylaq1sq-gVOcwmvC_yHw/s1600/20!.png" style="margin-left: 1em; margin-right: 1em;"><br /></a></div> <table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody> <tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfCU5FlZwZiD1uyA9SjPcZUUAr2hejdW42NxX2BZsGCUzIdxma7g14le9AFPzqH6GFxz71qB5awL0obpmSsuAw2oZorAm_mBwNmz46Xu8DJfxtmC__7LpCRnqn-2MZ_GWloU2Lk1OtZTo/s1600/20!.png" style="margin-left: auto; margin-right: auto;"><img border="0" height="244" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhfCU5FlZwZiD1uyA9SjPcZUUAr2hejdW42NxX2BZsGCUzIdxma7g14le9AFPzqH6GFxz71qB5awL0obpmSsuAw2oZorAm_mBwNmz46Xu8DJfxtmC__7LpCRnqn-2MZ_GWloU2Lk1OtZTo/s1600/20!.png" width="320" /></a></td></tr> <tr><td class="tr-caption" style="text-align: center;">picture for magic maths 1</td><td class="tr-caption" style="text-align: center;"><br /></td></tr> </tbody></table> for 2 we are adding 10+5+2+1=18<br /> for 3 we are adding 6+2<br /> your task to find for 5<br /> now let us see what if we are doing it for 10<br /> clearly we can take 5*2 as 10.<br /> now find the number of 2's and 5's in the number and then whichever is lower just that number of 10's will be available .<br /> like we get 5 2's and 6 5's so only five times we can multiply 2 with 5 . so 5 number of 10's will be available .<br /> have question ? use our comments box . <br /> <br /></div>

how to calculate the power of a given number in a factorial

Hi I am Prakash and am I here with my First magic maths tutorial . We will calculate the number of a digit in a given factorial number. like- number of 2's in 20! or number of 3's in 20! so lets star…

Read more »