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# Square of numbers near 50

If a number is in the form of (50–n)^{2} suppose →45^{2} then the short trick of getting the answer is : \frac{(45–5)}{2}'/'5^{2} . Remember here '/'doesnot means divide,it means the distinction or \boxed{digits are separated} so my answer becomes 20/25 which means 2025 is the answer. Check it out !

Note by Mafia maNiAc
1 year, 6 months ago

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Hey Here's a little reply XD For -10 < x < 10 (50 + x)^2 = 2500 + 100x + x^2 i.e. First 2 digits = 25 + x Last 2 digits = x^2 Very basic identity manipulation e.g. 55^2 = (50 + 5)^2 = 3025 See? 30? 25? XD

- 1 year, 6 months ago

Are u telling this to me?? First read what i have written then speak. Lol . Telling me identity

- 1 year, 5 months ago