Step-by-step explanation:
:: if a positive integer is added to a positive integer, the answer remains positive; same goes to the sum of an integer with two negative addends.
1+1 = 2
:: if a positive integer is added to a negative integer or vice versa, proceed in subtract the addends and copy the sign of the highest value.
-1 + 1 = 0 ;; 0 is neither positive or negative
©iarchives
