python beginner: lesson 30- sum of consecutive numbers

Question

I don’t know how to do this one, pls lmk if you have done this
thank you

Answer 1

Please show you attempt first

Answer 2

you can use the for or while loop, this requires an input, and a variable to store the sum.

#your code goes here
sum = 0
for n in range(N) :
sum += n
print(sum)