**Definition of Opposite Numbers**

- Two numbers that have the same magnitude but are opposite in signs are called Opposite Numbers.

**More about Opposite Numbers**

- When opposite numbers are added, it gives zero.
- To get the opposite of a number, change the sign.
- The absolute values of opposite numbers are the same.
- The opposite numbers are equidistant from 0 on a number line.

**Examples of Opposite Numbers**

- + 25 and – 25 are the opposite numbers.
- - 8 is the opposite number of + 8.

**Solved Example on Opposite Numbers**

Identify the opposite of 6 and represent it on a number line.

Choices:

A. + 6, Figure 1

B. – 6, Figure 2

C. ± 6, Figure 3

D. None of the above

Correct Answer: B

Solution:

Step 1:Opposite of 6 is - 6. [To get the opposite, change the sign of the number.]

Step 2:Negative numbers will be to the left of 0 and positive numbers will be to the right of 0 on the number line.

Step 3:As - 6 is negative number, it will be 6 units to the left of 0 on the number line.

Step 4:So, figure 2 represents – 6.

**Related Terms for Opposite Numbers**

- Absolute value
- Number Line
- Sign