Question

find an n odd number​

Answer 1

They are 1,3,5,7,9,11,13,15,17,19 and so on. Now, we need to find the sum of these numbers. Below is the table for the sum of odd numbers.

Answer 2

How to find an odd number ??

To find an odd number, look at the ones digit, or the digit to the very right of the number. (the ones digit in 5385 would be 5.)If the ones digit is either 1, 3, 5, 7, or 9, then the number is odd.

How to find an even number ??

To find an even number, look at the ones digit, or the digit to the very right of the number. (the ones digit in 5382 would be 2.) If the ones digit is either 0, 2, 4, 6, or 8, then the number is even.