NOTES: **When adding integers with the same sign:

1. Add the numbers together

2. Keep the sign for the answer.

1.) -6 + -14 = 2.) -6 + (-8) =

3.) -8 + -13 = 3.) 5 + 6 =

**When adding integers with different signs: 1. Ignore the signs and find the difference. 2. Keep the sign of the larger number for the answer.

1.) 7 + (-2 ) = 2.) 6 +(-8) =

3.) -7 + 5 = 4.) - 9 + 10 =

**When subtracting integers: 1. Change the subtraction sign to addition. 2. Change the sign of the second number. 3. Follow the rules for adding integers.

1.) – 3 – 15 2.) – 165 – (– 25) =

3.) 68 – 107 = 4.) 34 – 14 – (– 7) =

2.) 165 + (– 321) =

3.) – 68 + – 107 = 4.) – 34 – (– 523) + 71 =

1.) – 41 – 643 – (– 86) =

MIXED PRACTICE

2.) c + (- 4) =

3.) a – b = 4.) c + 5 – a =

1.) 14 – b =

INDEPENDENT PRACTICEEvaluate each expression for a = - 15, b = - 8, and c = 6.