Answer:
20100
Step-by-step explanation:
Sum of the first n natural numbers is given by the formula:
[tex] S_n = \frac {n(n+1)}{2} [/tex]
Plug n = 200, we find:
[tex] S_{200} = \frac {200(200+1)}{2} \\\\
\therefore S_{200} =100\times 201\\\\
\huge \orange {\boxed {\therefore S_{200} =20100}}
[/tex]