Since you were talking about so many concepts, one more point came to your mind. You gathered attention of all curious dwarfs and told, 'Did you all observe this interesting thing?? -1 is at the same distance from 0 as is 1. Same is true for -2, -3 and every other integer. What does it mean??'
One of the council members stood and told, 'They add to become equal to 0.' You smiled and told: Indeed they add to become zero. Such numbers which are negatives of each other are also known as __________ ____________ of each other.
Additive inverse
The numbers which are negatives of each other are known as the additive inverse of each other.