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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 examples27^2 = (27+3)*(27-3) + 3^2 = 30*24 + 9 = 720+9 = 729In this method, we have to make a number ending with 0, thats why; we add 3 to 27.

6 years ago

Sourabh Singh
IIT Patna
2104 Points
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
4 years ago
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### Course Features

• 731 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions