1. Integers
Rules of Operation

2. Integers The set of whole numbers and their opposites
, -2, -1, 0, +1, +2,

3. Operations with Integers
Addition
Subtraction
Multiplication
Division

4. Addition of Integers
Only Two Rules!

5. Two Rules!
When the signs of the numbers being added are the same, add their absolute values--The answer has the same sign
When the signs of the numbers being added are different, subtract their absolute values--The answer has the sign of the larger number

6. Subtraction of Integers
Add The Opposite!

7. Add The Opposite! Add the opposite and refer to the addition rules
In Other Words,
change the subtraction to addition and change the sign of the second number

8. Multiplication of Integers
Two Rules Again!

9. Two Rules Again!
When the sign of the numbers being multiplied are the same, multiply the numbers--The sign of the answer is positive
When the sign of the numbers being multiplied are different, multiply the numbers--The sign of the answer is negative

10. Division of Integers
Same Rules!

11. Same Rules!
Same as the rules for Multiplication of Integers

12. Examples 3 + 5 -2 + 5 5 + -4 -6 + -3 4 – 8 -6 – (-7) -2 – 6 7 – (-2) 81 -9 -4 -8 9
(3)(5)
(-2)(5)
(-3)(-6)
(-7)(8)
(12)/(-6)
(-16)/(8)
(64)/(8)
(-54)/(-6) 15
-10 18
-56 -2 8 9