Find the sum of the whole numbers from 1 to 870.

378,885

Step-by-step explanation:

We could just add it all up but there is a simple easy formula :D

n(n + 1)/2 = Sum of Integers

We make n be the biggest number in the sequence. n=870 then

870(870 + 1)/2 = 378,885

Just by using a simple formula, we were able to calculate the sum very quickly.

I hope this helps!

w'x is 0.

hope it

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.