Exploring the opposite of an integer. [br][br]In mathematics, the [b]additive inverse[/b] of a [url=https://en.wikipedia.org/wiki/Number]number[/url] a is the number that, when [url=https://en.wikipedia.org/wiki/Addition]added[/url] to a, yields [url=https://en.wikipedia.org/wiki/0_(number)]zero[/url]. This number is also known as the [b]opposite[/b] (number),[sup][url=https://en.wikipedia.org/wiki/Additive_inverse#cite_note-1][1][/url][/sup] [b]sign change[/b],[sup][url=https://en.wikipedia.org/wiki/Additive_inverse#cite_note-2][2][/url][/sup] and [b]negation[/b].[sup][url=https://en.wikipedia.org/wiki/Additive_inverse#cite_note-3][3][/url][/sup] For a [url=https://en.wikipedia.org/wiki/Real_number]real number[/url], it reverses its [url=https://en.wikipedia.org/wiki/Sign_(mathematics)]sign[/url]: the opposite to a [url=https://en.wikipedia.org/wiki/Positive_number]positive number[/url] is negative, and the opposite to a [url=https://en.wikipedia.org/wiki/Negative_number]negative number[/url] is positive. [url=https://en.wikipedia.org/wiki/Zero]Zero[/url] is the additive inverse of itself.[br][br][br]More[br][br][url=https://en.wikipedia.org/wiki/Additive_inverse#:~:text=In%20mathematics%2C%20the%20additive%20inverse,a%20negative%20number%20is%20positive.]https://en.wikipedia.org/wiki/Additive_inverse#:~:text=In%20mathematics%2C%20the%20additive%20inverse,a%20negative%20number%20is%20positive.[/url][br][br][br][br][br]