Subtracting Negative and Positive Integers
To subtract integers, change the sign on the integer that is to be subtracted.
 If both signs are positive, the answer will be positive.
Example: 8  (4) = 8 + 4 = 12
 If both signs are negative, the answer will be negative.
Example: 8  (+4) = 8  4 = 12
 If the signs are different subtract the smaller absolute value from the larger
absolute value. The sign will be the sign of the integer that produced the larger
absolute value.
Example: 6  (+2) = 6  2 = 4
Example: 6  (2) = 6 + 2 = 4
Example: 6  (2) = 6 + 2 = 8
Example: 6  (+2) = 6  2 = 8

