How Talent Thinks and Calculates?

I'd prefer noting 1+10=11, 2+9=11, etc. 10 numbers leads to 5 pairs, and 11x5=55.

This consecutive-sum anecdote usually depicts mathematician Gauss as the "excellent"/"talented" student in his childhood.
This consecutive-sum anecdote usually depicts mathematician Gauss as the "excellent"/"talented" student in his childhood.
Yeah, and I recall it being for 1-100, before they introduced the general formula n(n+1)/2 for finding the sum of 1 to n consecutive integers being added together as a way of utilizing this method. So n=100 leads to 100(100+1)/2=5050.