Here, we will not only tell you what the sum of integers from 1 to 120 is, but also show you how
to calculate it fast. The sum of the integers from 1 to 120 is as follows:
7,260
To get the answer above, you could add up all the digits like 1+2+3... +120, but there is a much
easier way to do it! Use the following formula:
n(n + 1)/2 = Sum of Integers
In this case, n=120, thus you get your answer by entering 120 in the formula like this:
120(120 + 1)/2 = 7,260
Sum of Integers from 1 to 121
Do you think you can do it on your own now? Try with one more integer before you go here to check your answer!

