Question

The sum of the first 100 positive even numbers show your work

Answer 1

In both cases we get the same answer: the sum of the first 100 positive even numbers is 10,100.

Explanation:

2 + 4 + 6 + 8 + ....+ 198 + 200 =

= (2 + 200) + (4 + 1998) + ... + (100 + 102) = 50*202 = 10,100