Square of a Number Using Vedic Mathematics

There are many ways with which we can find out square of a number within seconds. Let’s see how we can find out square of a number faster using Vedic Mathematics (Nikhilam method)

Example 1: Find out the square of 12

Step 1

We need to take the nearest power of 10. So here 10 is the nearest power of 10 which we can take as our base. The deviation to the base = 12-10 = 2

(To find out the deviation, just remove the left most digit "1" and you will get it quickly)

Now the Left Hand Side of the answer (LHS) will be the sum of the number and deviation. Hence the Left Hand Side of the answer (LHS) = 12 + 2 = 14

Step 2

Our base is 10 which has a single zero. This means that our Right Hand Side of the answer (RHS) will have a single digit and that can be obtained by taking the square of the deviation.

Hence the Right Hand Side of the answer (RHS) = 22 = 4

Hence the answer  = 144

Example 2: Find out the square of 13

Step 1

We need to take the nearest power of 10. So here 10 is the nearest power of 10 which we can take as our base.  The deviation to the base = 13-10 = 3

(To find out the deviation, just remove the left most digit "1" and you will get it quickly)

To find out the deviation, just remove the left most digit "1" and you will get it quickly

Now the Left Hand Side of the answer (LHS) will be the sum of the number and deviation.Hence the Left Hand Side of the answer (LHS) = 13 + 3= 16

Step 2

Our base is 10 which has a single zero. This means that our Right Hand Side of the answer (RHS) will have a single digit and that can be obtained by taking the square of the deviation.

Hence the Right Hand Side of the answer (RHS) = 32 = 9

Hence the answer  = 169

Example 3: Find out the square of 14

Step 1

10 is the nearest power of 10 which we can take as our base.  The deviation to the base = 14-10 = 4

(To find out the deviation, just remove the left most digit "1" and you will get it quickly)

To find out the deviation, just remove the left most digit "1" and you will get it quickly

Now the Left Hand Side of the answer (LHS) will be the sum of the number and deviation. Hence the Left Hand Side of the answer (LHS) = 14 + 4 = 18

Step 2

Our base is 10 which has a single zero. This means that our Right Hand Side of the answer (RHS) will have a single digit and that can be obtained by taking the square of the deviation.

Hence the Right Hand Side of the answer (RHS) = 42 = 16. Please note that the Right Hand Side of the answer (RHS) can have only a single digit because our base 10 has a only single zero. Hence, from the obtained number 16, we will take R.H.S as 6 and 1 is taken as a carry which we will add to our LHS. Hence LHS becomes 18+1 = 19

Hence the answer = 196

Example 4: Find out the square of 106

Step 1

Here 100 is the nearest power of 10 which we can take as our base.  The deviation to the base = 106-100 = 6

(To find out the deviation, just remove the left most digit "1" and you will get it quickly)

To find out the deviation, just remove the left most digit "1" and you will get it quickly

Now the Left Hand Side of the answer (LHS) will be the sum of the number and deviation. Hence the Left Hand Side of the answer (LHS) = 106 + 6 = 112

Step 2

Our base is 100 which has two zeros. This means that our Right Hand Side of the answer (RHS) will have two digits and that can be obtained by taking the square of the deviation.

Hence the Right Hand Side of the answer (RHS) = 62 = 36.

Hence the answer = 11236

Example 5: Find out the square of 112

Step 1

Here 100 is the nearest power of 10 which we can take as our base.  The deviation to the base = 112-100 = 12

(To find out the deviation, just remove the left most digit "1" and you will get it quickly)

To find out the deviation, just remove the left most digit "1" and you will get it quickly

 
Now the Left Hand Side of the answer (LHS) will be the sum of the number and deviation. Hence the Left Hand Side of the answer (LHS) = 112 + 12 = 124

Step 2

Our base is 100 which has two zeros. This means that our Right Hand Side of the answer (RHS) will have two digits and that can be obtained by taking the square of the deviation. Hence the Right Hand Side of the answer (RHS) = 122 = 144. Please note that the Right Hand Side of the answer (RHS) can have only two digits because our base 100 has only two zeros. Hence, from the obtained number 144, we will take R.H.S as 44 and 1 is taken as a carry which we will add to our LHS. Hence LHS becomes 124+1 = 125

Hence the answer = 12544

Video Tutorial

 
 
 
 
Comments(72) Sign in (optional)
showing 11-20 of 72 comments,   sorted newest to the oldest
Rajesh
2016-03-13 14:58:27 
55^2= 5^2/2.5.5/5^2
25/50/25
Now write 5 as it is and add 2 to 50 i.e become 52 again 
write 2 of 52 and add 5 to remaining 25 we get 30 . 
Hence answer is : 30 25.
(0) (0) Reply
Abcd
2015-05-03 08:57:46 
We can use another trick
55^2=first find the square in units place that is 5=25
Now we got the rhs =25
Now we have to find lhs=we have to multiply the number in units place by its ahead number that is 6=5*6=30=lhs
So 55^2=3025
(0) (0) Reply
shivam jain
2015-04-04 06:48:51 
whenever this type of ques like 55,45,65 etc
use this
1. 55 = 5 , 5 
 in this unit digit 5 do square which is 25
and , tens digit 5 multiply to the next digit i.e 6=30
now combine the result is 3025
similarly,
45 = 4x5 , 5x5 = 20,25= 2025
(0) (0) Reply
pg18
2015-03-12 11:36:15 
How to find out square of 99?
(0) (0) Reply
Aswin
2015-12-18 18:31:50 
100-1=99
99-1=98
Difference from 100 to 99=1
&its square 01 
i.e., ans = 9801
(0) (0) Reply
Lokendra
2015-09-17 15:11:51 
To find square use 
(ab)^2 = a^2 / 2ab / b^ 2
In our case -- 99^2= 9^2 / 2. 9. 9/9^2
81/162/81
Now write 1 as it is and add 8 to 162 I.e 170
Again write 0 of 170 and add 17 to remaining 81 we get 98 so complete ans is .... 9801 :)
(0) (0) Reply
kranti
2015-03-05 09:22:14 
how to get (56)2??
(0) (0) Reply
shivam jain
2015-04-04 07:01:08 
find difference first from 25 i.e. 31 and then difference from 50 i.e 6
 now, LHS is 31 and RHS is 36 i.e square of 6
combine the result to get ans 3136 

this trick is used in 38,28,36,26 etc
lets see 38
subtract frm 25 i.e 13 and subtract frm 50 i.e 12
now 13 is LHS and 144 is RHS but the result is 13144 i.e. 1(3+1)44 =1444 
(0) (0) Reply
rajesh
2015-02-24 08:19:35 
(38)2 how to get square
(0) (0) Reply
suraj
2015-07-05 09:56:18 
(38)2=32|2.3.8|82
=9|48|64

now come from right
write 4 of 64
4

add 6 to its left i.e 48+6=54
write 4
44

now add 5 to its left i.e 9+5=14
write 14

1444
(0) (0) Reply
Previous12345 ... 8Next Go
showing 11-20 of 72 comments
 
Add a new comment...  (Use Discussion Board for posting new aptitude questions.)

Name:
Email: (optional)
0 + 9 = (please answer the simple math question)

Post Your Comment
X  
View & Edit Profile Sign out
X
Sign in
Google
Facebook
Twitter
Yahoo
LinkedIn
X