179 videos158 docs113 tests

1. What is the trick to find the square of a number close to 50? 
2. How can I find the square of a number close to 50 without using a calculator? 
3. Can I use this trick to find the square of any number close to a different value, not just 50? 
4. How accurate is the trick for finding the square of numbers close to 50? 
5. Can I use this trick to find the square root of a number close to 50? 
179 videos158 docs113 tests

00:19  Square of numbers close to 50 (greater than 50) 
01:25  Square of numbers close to 50 (smaller than 50) 

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