¤ To add two positive or negative number the sign number of the sum is the sam
¤ If you add two different signed number you must subtract it
¤If however you add two different signed number look at what is the greater number and copy its sign to your sum

¤If your numbers is the same sign just subtract it and copy the sign
¤If your numbers sign is different change the operation to additiom and change your subtrahend to the opposite sign
¤ If however there are three more factors count the factors negative number and if it is odd it is negatibe and if even positive