1. Integers
Free powerpoints at

2. Integers
The set of whole numbers and their opposites

3. Operations with Integers

4. Addition
Subtraction
Multiplication
Division

5. Addition of Integers

6. When the signs of the numbers being added are the same, add their absolute values--The sign of the answer is the same as the sign of the numbers added together
When the signs of the numbers being added are different, subtract their absolute values--The sign of the answer is the same as the number with the largest absolute value

7. Subtraction of Integers

8. Add the opposite and refer to the addition rules (change the subtraction to addition and change the sign of the number being subtracted)

9. Multiplication of Integers

10. 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 multiplies are different, multiply the numbers--The sign of the answer is negative

11. Division of Integers

12. Same as the rules for multiplication of Integers