1. Objective - To divide integers.
Odd # of Negatives = Negative
Even # of Negatives = Positive
Simplify. 1) -5 5) -3 2) +4 6)
+25 3) -9 7)
(-2) =
-12 4) +8 8) =
+10

2. Multiplicative Inverses
= Reciprocal.
For every rational number a, there is one and only
one rational number such that
Find the multiplicative inverse for each number.

3. Rewrite each division as multiplication.

4. Simplify the complex fraction.1) = = = = 2) = = = =

5. x + 0 = x Identities Identity Property of Addition
Identity Property of Multiplication
Properties of Zero
Multiplication Property of Zero
Division Property of Zero

6. Division by Zero?
= ?
8 ounce glass

7. Division by Zero?
= ?
= 1 time
8 oz.
8 ounce glass

8. Division by Zero?
= ?
= 1 time =
4 oz.
8 ounce glass

9. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 ounce glass Division by Zero?
= ?
= 1 time
= 2 times
4 oz.
4 oz.
8 ounce glass

10. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 8 ounce glass
Division by Zero?
= ?
= 1 time
= 2 times =
8 ounce glass

11. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 8 ounce glass
Division by Zero?
= ?
= 1 time
= 2 times =
8 ounce glass

12. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 8 ounce glass
Division by Zero?
= ?
= 1 time
= 2 times =
8 ounce glass

13. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 ounce glass
Division by Zero?
= ?
= 1 time
= 2 times =
4 times
8 ounce glass

14. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 1 = 8 ounce glass
Division by Zero?
= ?
= 1 time
= 2 times
= 4 times =
8 ounce glass

15. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 1 = 8 times
Division by Zero?
= ?
= 1 time
= 2 times
8 oz.
= 4 times
= 8 times
8 ounce glass

16. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 1 = 8 times 8 =
Division by Zero?
= ?
= 1 time
= 2 times
= 4 times
= 8 times
8 ounce glass =

17. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 1 = 8 times
Division by Zero?
= ?
= 1 time
= 2 times
8 oz.
= 4 times
= 8 times
8 ounce glass
= 16 times

18. 8 0 = ? 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 1 = 8 times
Division by Zero?
= ?
= 1 time
= 2 times
= 4 times
= 8 times
8 ounce glass
= 16 times
= ?

19. 8 0 = Undefined 8 8 = 1 time 8 4 = 2 times 8 2 = 4 times 8 1 = 8 times
Division by Zero?
= Undefined
= 1 time
= 2 times
= 4 times
= 8 times
8 ounce glass
= 16 times
= ?

20. Review
0 8 =
8 0 =

21. Review
0 8 =
8 0 =
undefined

22. x = 0 x = -5 x = 0 or x = 0 x = -9 x = 1 or x = 3 x = -7
In the expression below the variable x can
represent any real number except what? 1)
x = 0 4)
x = -5
x = 0 or 2)
x = 0 5)
x = -9
x = 1 or 3) 6)
x = 3
x = -7