Find the sum of first
- find the sum of first 10 natural numbers
- find the sum of first n positive integers
- find the sum of first n odd natural numbers
- find the sum of first 100 natural numbers
- find the sum of first 51 terms
- find the sum of first 1000 positive integers
- find the sum of first 8 multiples of 3
- find the sum of first n natural numbers
- find the sum of first n even natural numbers
- find the sum of first 15 multiples of 8
