1. Multiply and Divide Integers

2. Same rules apply for both multiplication and division When both signs are the same – then the answer is positive ++ = + -- = + When one number is positive and the other is negative – then the answer is negative +- = - -+ = -

3. Rule #1

4. Rule #2 When one number is positive and the other is negative – then the answer is negative +- = - -+ = - (5)(-3) = -15(-5)(3) = -15

5. Steps: 1)Multiply or divide like normal 2)Check the signs If both signs are the same – answer is positive If signs are different – answer is negative That’s it!!!!

6. My examples -5 x -4 (2)(8) -36 ÷ 4 - -

7. -6 x -4

8. 42 ÷ -7

10. (+8)(+9)

12. -

17. -5 x -4 x 3

18. (-4)(-8)(-5)

19. (6)(-7)(3)

20. Special Situations with exponents 5 2 or (5) 2 (-5) 2 - 5 2 5 3 -5 3 (-5) 3

21. Word problems If putting things together = multiply Something happens many times = multiply If taking something apart or separating something = divide Also – watch out for positive or negative words!

22. Joe owes 4 friends $15 each. How much does he owe in total?

23. The enrollment at Davis middle school dropped by 60 students over a 5 year period. What is the average yearly drop in enrollment per year?

24. A submarine dives below the surface in 5 moves. Each move is 325 ft. down. How far does the sub travel after all five moves?

25. The running back for the Bulldogs football team carried the ball 9 times for a total loss of 18 years. Find the average change in field position on each run.