1. Lesson #17: Adding Integers

2. Rules: (+) + (+) = + 5 + 3 = 8 (-) + (-) = - -5 + -3 = -8
(+) + (+) = +
Add two positives = positive
= 8
(-) + (-) = -
Add two negative = negative
= -8

3. Adding Positive and Negative Integers
(-) + (+) =
The answer will be the sign of the greatest face value, then subtract the numbers
(+) + (-) =
(-5) + (+2) =
5 > 2 therefore the answer will be negative because 5 is negative
(-5) + (+2) = - 3

4. Examples:
(-4) + (-1) = (+2) + (+5) = (-1) + (+4) = (-2) + (-3) = (+4) + (-4) = (-2) + (+5) = (-15) + (-2) = (-3) + (+1) = (0) + (+3) =