Question

if we do as 1+2+4+5+6+7+8+9+10.........so on what would be the answer

Answer 1

If you go on adding natural numbers as 1+2+3+4+5+6+.... , It will be infinite. We can't calculate it unless you specify where it is ending.  But it can be calculated if it ends at some random number n.  1+2+3+4+...+n = n(n+1)/2  Sum of natural numbers till n is n(n+1)/2.

Answer 2

sum
of
the
n
natural
number is
1+2+3+4+.........+n= n(n+1)/2

by SK mathematics