Maths tricks for fast calculation - 1 views
Division by 5 : What is 50 by 5 = 10 that's easy but what is 3421 by 5. It's not that easy to calculate in mind right? What is the sum of all even numbers from 0 to 10. Now, there are 4 even num...
Division by 5 : What is 50 by 5 = 10 that's easy but what is 3421 by 5. It's not that easy to calculate in mind right? What is the sum of all even numbers from 0 to 10. Now, there are 4 even num...