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Square of any 2 digit number (You cant use this rule for other numbers) Let me explain this rule by taking examples 27^2 = (27+3)*(27-3) + 3^2 = 30*24 + 9 = 720+9 = 729 In this method, we have to make a number ending with 0, thats why; we add 3 to 27.


Square of any 2 digit number (You cant use this rule for other numbers)  Let me explain this rule by taking examples


27^2 = (27+3)*(27-3) + 3^2 = 30*24 + 9 = 720+9 = 729


In this method, we have to make a number ending with 0, thats why; we add 3 to 27.


Grade:Upto college level

1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
7 years ago
Hii
Thanks for the info but seriously I was expecting a question . If in future you have queries do ask it on over here . We will surely help you out

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