Find the sum of all integers between −102 and 104.

1 answer:

3 0

Technically, you could go through and add every single integer between -102 and 104, but that is a lot of work.

However, there is a shortcut.

The opposite of -102 is 102, right? When you add two opposites together, they turn out to be 0. You can use this for every integer from -102 to 102.

Basically, you end up with 103 and 104 that are left.

Add them and you get 103+104=207.

207 is the answer.

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