Periods B, F, and G - notes on adding integers.

To add two integers that are the same sign, whether it be negative or positive, take their absolute values, add them together and keep the sign of the numbers.

Ex. -9 + (-10)

To perform this problem I first take the absolute values of each sign and add them. The absolute value of -9 is 9 and the absolute value of -10 is 10 so I add 9 + 10 to yield 19. Since both integers have a negative sign I place the negative sign in front of 19. So the answer to
-9 + (-10) is -19.

To add two integers that are different signs I take the absolute values of both integers and subtract the smaller absolute value from the larger absolute value. For my answer I take the sign associated with the larger absolute value and place it in front of my answer from the subtraction.

Ex. -11 + 5

Step 1: Take the absolute values of -11 and 5, which are 11 and 5. Subtract 5 from 11 since 11 is the larger value --> 11-5 = 6
Step 2: Since the larger absolute value is 11 I take the negative sign associated with the 11 and place it of the 6, therefore our answer is
-6.