1. 1.4 ADDING INTEGERS

2. Additive inverse
 The opposite of a number
 The additive inverse of 5 is -5

3. Adding two integers
 Same sign
 Find the sum of the absolute values.
 Use the same sign as the integers.
 Different sign
 Find the difference of the absolute values.
 Use the sign of the integer with the greater
absolute value.

4. Ex 1: use a number line
 -3 + (-2)
 -6 + 2

5. Example 2:Add
 1 + (-2)
 (-8) + 5
 (-2) + (-4)
5+1

6. Example 3: Evaluate
c+4 c=-8
 -b + 11 b = -6