1. copyright©amberpasillas2010 Day 2

2. copyright©amberpasillas2010 For Learning to Happen! Please pay close attention to this lesson. Try all of the problems in your head. My goal is to call on everyone at least once so that I can check to see that you know how to multiply integers.

3. copyright©amberpasillas2010 Signs are the same Signs are different Simplify. 1) 2) 3) 4) 5) 6) POSITIVE NEGATIVE

4. copyright©amberpasillas2010 Your bank records 5 deposits of $20 each. Your bank records 5 withdrawals of $20 each. Multiply Integers…Why It Works!

5. copyright©amberpasillas2010 Multiply Integers…Why It Works! Your bank loses track of 5 deposits of $20 each. Your bank loses track of 5 withdrawals of $20 each.

6. copyright©amberpasillas2010 An Easy Way To Remember How To Multiply Integers When good things, happen to good people, that’s good! + + = + When bad things, happen to bad people, that’s good! – – = + When good things, happen to bad people, that’s bad! + – = – When bad things, happen to good people, that’s bad! – + = –

7. copyright©amberpasillas2010 Try These! Watch the Signs! Simplify the following. 1) -6(8) = 3) 5(-7) = 2) 6 - 7 = 4) -6 - 5 = -48 -35 -11

8. copyright©amberpasillas2010 Multiplying Multiple Integers Another way to think about it: Odd # of Negatives = Negative Even # of Negatives = Positive

9. copyright©amberpasillas2010 Multiplying Multiple Integers Odd # of Negatives = Negative Even # of Negatives = Positive 1) 2) = -63 24 (-2) = -48

10. copyright©amberpasillas2010 Multiplying Multiple Integers Odd # of Negatives = Negative Even # of Negatives = Positive 3) 4) = +30 20 2 = +40 -10 -3

11. copyright©amberpasillas2010 Multiplying Multiple Integers Odd # of Negatives = Negative Even # of Negatives = Positive 1)2) 3) 4)

12. copyright©amberpasillas2010 Multiplying Multiple Integers Odd # of Negatives = Negative Even # of Negatives = Positive 5)6) This one is a challenge!

13. copyright©amberpasillas2010 Simplify the following. 1)2) It gets challenging with exponents!

14. copyright©amberpasillas2010 Simplify the following. 3)4)

15. copyright©amberpasillas2010 Simplify the following. 5)6)

16. copyright©amberpasillas2010 Simplify the following. 7)8)

17. copyright©amberpasillas2010 Simplify the expressions when x = -3. 1)2)

18. copyright©amberpasillas2010 Simplify the expressions when x = -3. 3)4)

19. copyright©amberpasillas2010 Use <, >, or = to compare. < - 69

20. copyright©amberpasillas2010 Use, or = to compare. < - 3636

21. copyright©amberpasillas2010 Use, or = to compare. = -20

22. copyright©amberpasillas2010 Use, or = to compare. > -42-48

23. copyright©amberpasillas2010 Aren’t integers interesting? Take out your study guide

24. copyright©amberpasillas2010 To Remember Multiply & Divide Integers #13 When good things, happen to good people, that’s good! + + = + When bad things, happen to bad people, that’s good! – – = + When good things, happen to bad people, that’s bad! + – = – When bad things, happen to good people, that’s bad! – + = – +  + = + –  – = + +  – = – –  + = –