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October 12, 2015

Trick to Find Square of a Number

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Hai.. SREE here... here i am giving you trick to find the square of numbers ... i think most of you have already know this method . if you don’t know read this. This is a simple method, by practising you can easily find square of numbers. Happy reading......

To find square of 32:
  • Step 1: 22=4; write as 04
  • Step 2 : 32=9;write as 09
  • Step 3 : (3×2)=6, take the double of 6 ie 6×2=12
  • Step 4 : add the numbers
  • Step 5 : answer is 1024    

To find square of 78 :
  • Step 1: 82 = 64
  • Step 2 : 72 = 49
  • Step 3 : (7×8)=56,taking double we get 112
  • Step 4 : add the numbers
  • Step 5 : answer is 6084

Hope you got the method... now we can find the square of 3 digit number...

To find square of 123:
  • Step 1 : 32=09
  • Step 2 : 22=04
  • Step 3 : 12=01
  • Step 4 : (3×2)=6 taking double we get 12
  • Step 5 : (3×1)=3 taking double we get 06
  • Step 6 : (2×1)=2 taking double we get 04
  • Step 7 : add the numbers
  • Step 8 : answer is 15129

Is it too complicated?? By practicing it will surely became easy for you... don’t forget the order ....

To find square of 796:
  • Step 1 : 62=36
  • Step 2 : 92=81
  • Step 3 : 72=49
  • Step 4 : (6×9)=54 taking double we get 108
  • Step 5 : (6×7)=42 taking double we get 84
  • Step 6 : (9×7)=63 taking double we get 126
  • Step 7 : add the numbers
  • Step 8 : answer is 633616
Now lets discuss how to find square of a 4 digit number.....

To find square of 2354:
  • Step 1 : 42=16
  • Step 2 : 52=25
  • Step 3 : 32=09
  • Step 4 : 22=04
  • Step 5 : (4×5)=20 taking double we get 40
  • Step 6 : (4×3)=12 taking double we get 24
  • Step 7 : (4×2)=8 taking double we get 16
  • Step 8 : (5×3)=15 taking double we get 30 { write 30 exactly below 16}
  • Step 9 : (5×2)=10 taking double we get 20
  • Step 10 : (3×2)=6 taking double we get 12
  • Step 11 : add the numbers
  • Step 12 : answer is 5541316

I think you got the method. Try yourself on more numbers then it will become easy for you.i think i succeeded in explaining method for you. If you think this is lengthy and complicated just leave it...
Thank you guys !!!!


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