Answer:
The location of the sum is 2 units before P (left to P)
Step-by-step explanation:
* <em>Lets describe the number line</em>
- A number line is a horizontal straight line with numbers placed at
an equal units
- A number line can be extended infinitely to the left and to the right
- A number line represents both positive and negative integers
- The numbers come on it from left to right
- The negative numbers come on the left of zero and the positive
numbers come on the right of zero
- Ex: -5 , -4 , -3 , -2 , -1 , 0 , 1 , 2 , 3 , 4 , 5 part of the numbers on the
number line
- To add numbers on the number line we start from first number of
the addition and if this number is added by a positive number we
go to right , if the number is added by a negative number
we go to left
- Ex: 5 + 3 ⇒ go from 5 to the right 3 units, then your position is at 8
2 + (-3) ⇒ go from 2 to the left 3 units then your position is at -1
* <em>Now lets solve the problem</em>
- The sum of P + (-2)
∵ Your location is P
∵ You will add P by (-2)
- Negative number means you go to the left
∴ Your position will be before P by two units
∴ The location of the sum is 2 units before P (left to P)
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