-25 + -61 = -86
Negative plus negative equals
A negative plus negative sign is equal to a negative sign
For example, negative 25 plus negative 61 is equal to negative 86
Addition rules for positive and negative numbers
1. Two same signs – (Add the numbers)
25 + 61 = 86
-25 + -61 = -86
Summary
+ |
+ |
+ |
– |
– |
2. Two different signs – (Subtract the numbers)
For example:
25 + -61 = -36
-25 + 61 = 36
Summary
+ |
– |
– |
– |
+ |
It is important to be consistent with the signs when adding or subtracting integers.
NOTE |
A number with no negative sign at the front is always a positive number |
Negative plus Negative Calculator
Use the calculator below to add two negative numbers