1. Describe the rules to adding and subtracting integers
Do Now
Describe the rules to adding and subtracting integers

2. Lessons 6 and 7 Objective: Multiply and divide integers
Chapter 3
Lessons 6 and 7
Objective: Multiply and divide integers

3. SIMPLE RULE MULTIPLY or DIVIDE as usual Same signs (+) answer
Different signs (-) answer

4. Here we go!
3(-5)
-15
-6(8)
-48
-11(-9) 99
(-4)^2 16

5. Let’s tie in algebra! Simplify -2(3x) -6x Simplify -5(2y) -10y
Simplify (2x)(-3y)
-6xy
Simplify (-5x)(-2y)
10 xy

6. A little more algebra! Evaluate pqr if p = -3, q = 4, and r = -1
(-3)(4)(-1)
(-12)(-1) 12
Evaluate xyz if x = -7, y = -4, z = 2
(-7)(-4)(2)
(28)(2) 56

7. Try some on your own
Page 136 numbers odd

8. Easy Stuff Lets Start Dividing!
Same rules apply
Same sign positive answer
Different sign negative answer

9. Lets divide
-72 ÷ 8 -9
-12 ÷ -4 3
-36 ÷ -2 18
-12 ÷ 4 -3

10. Here are some more!
-55 11 -5
-81 9 -9
-45 5

11. Let’s tie in Algebra! R = 12 s = -4 t = -6 72 ÷ t -12 RS ÷ 16 -3
t squared ÷ R 3

12. Numbers 19-31 odd numbers only
Your turn
Page 140
Numbers odd numbers only

13. Your homework Page 136 numbers 14-42 even Page 140 numbers 14-42 even
Practice test
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