Another easy trick to find Square of a two digit number, Simply described
To find the value of square of a number you have to just remember the square of 1 to 10. That's all the basic requirement of this trick.
Rule : A^2 | 2AB | B^2
Let's find the square using an example:
26 ( Assume A=2, B=6), Now according to the rule:
26’Sq = 2^2 | 2*2*6 | 6^2 = 4 | 24 | 36 = 4+2 | 4 + 3 | 6 = 6 | 7 | 6 =676
(Note: If after | is exceeds one digit then rightmost digit will be there but other will be added before | )
Similarly, you can use this method 1 to 99.
If any problem you face please comment here.
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can u show this method by solving for 99^2
ReplyDelete99^2 = 9^2 | 2*9*9 | 9^2 = 81 | 162 | 81 = 81 | 162 + 8 | 1 = 81 | 170 | 1 = 81 + 17 | 0 | 1 = 98 | 0| 1 = 9801
DeleteIf you face any other difficulty please feel free to comment here...