To add two numbers having opposites, first subtract the smaller number from the larger number and then put the sign of the larger number to the result.
So, to add - 6 and 5, first subtract 5 from 6.
6 - 5 = 1
The number - 6 has a negative sign. So, put the '-' sign to the result, 1.
So, - 6 + 5 = - 1
- 1 is a negative number, which is 1 unit to the left of 0. So, its opposite is 1, which is 1 unit to the right of 0.
[Positive numbers will be to the right and negative numbers will be to the left of 0 on the number line.]
So, Figure 1 is the correct representation of the sum of - 6 and 5 and the opposite of their sum on the number line.
Correct Answer is : Figure 1