Opposite of?

What is the opposite number of -9?

Find the opposite of -9

Multiply -9 by -1

-1 * -9

Since -9 is negative
the opposite must be positive

Multiply -9 by -1 to find the opposite:

Opposite of -9 = -(-9) = 9

Opposite of -9 = -(-9) = 9
How does the Opposite Numbers Calculator work?
Free Opposite Numbers Calculator - Given a positive or negative integer (n), this calculates the opposite number of n
This calculator has 1 input.

What 1 formula is used for the Opposite Numbers Calculator?

Opposite of a positive number a = -1*a = -a
Opposite of a negative number -1 = -1 * -a = a

For more math formulas, check out our Formula Dossier

What 7 concepts are covered in the Opposite Numbers Calculator?

integer
a whole number; a number that is not a fraction
...,-5,-4,-3,-2,-1,0,1,2,3,4,5,...
negative
numbers or values less than 0
number
an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
number line
a line on which numbers are marked at intervals, used to order numbers. Smaller numbers are on the left and larger numbers are on the right.
opposite
diametrically different; of a contrary kind.
opposite numbers
A number on the other side of the number line, with the same distance from zero
positive
numbers or values greater than 0