Question

1+2+3+4+5+6............100

Answer 1

The answer is 5050.

To solve this type of problems,

USE,n (n+1)/2

where n is the upper limit or the last no.

Here,
100×101/2=5050

Answer 2

Answer:

5050 is the answer

Step-by-step explanation:

(100)(101)/5

=5050

Hope this helps