Hotmath
Math Homework. Do It Faster, Learn It Better.

Opposites

The opposite of a number is its additive inverse. The sum of a number and its opposite is zero. (This is sometimes called the property of opposites ).

   a + ( a ) = 0

Examples:

999 + 999 = 0 1 3 + ( 1 3 ) = 0 1 + ( 1 ) = 0

So, the opposite of 999 is 999 ; the opposite of 1 3 is 1 3 ; the opposite of 1 is 1 .

You can also think of the opposite of a number as its reflection around 0 on the number line.