1. Do Now 9/28/11 Take out HW from last night. Copy HW in your planner.
Text p. 48, #16-42 all, 45, 46, 50 & 51
Copy HW in your planner.
Textbook page 54, #1-4 all, all, all, 56
In your notebook, answer the following question. What is the sum of two opposite numbers? Give three examples

2. Homework Text p. 48, #16-42 all, 45, 46, 50 & 51
32) >
33) =
34) >
35) =
36) <
37) =
38) <
39) Aug, Jul, Sep, May, Jun, Apr, Mar, Oct
40) -32
41) -29
42) -2,000,000; 5,000,000
45) decreased by about 9%
46) increased by about 27%
50) C
51) G
16) 4
17) -10
18) 12
19) -7
20) <
21) >
22) <
23) <
24) -6, -5, -3, 2, 5
25) -9, -7, -5, -2, 0
26) -6, -2, -1, 3, 9
27) 16
28) 12
29) 20
30) 15
31) <

3. Objective SWBAT use a number line to perform integer addition
Please take out your number lines

4. Using Counters -6 +2 -6 + 2 = -4 negative positive Zero Pair
Remember This???
Using Counters
negative
positive = -4 -6
Zero Pair
= 0 +2

5. Using Counters 5 -3 5 + (-3) = 2 negative positive Zero Pair
Remember This???
Using Counters
negative
positive
5 + (-3) = 2 5 -3
Zero Pair
= 0

6. Section 2.2 “Adding Integers” Part 1-5 -4 -3 -2 -1 1 2 3 4 5 +5
When you ADD a
POSITIVE NUMBER =
= 4

7. Addition Using a Number Line-5 -4 -3 -2 -1 1 2 3 4 5 -7
When you ADD a
NEGATIVE NUMBER
3 + (-7) =
3 + (-7) = -4

8. Try It Out 1). 7 + (-5) 2). -13 + 8 3). (-7) + (-4) 4). 15 + (-17)
1) (-5) 2)
3). (-7) + (-4)
4) (-17)
5). |-10| + (-7)
= 2
= -5
= -11
= -2
= 3

9. Addition Using a Number Line
(-7)
Addition Using a Number Line -5 -4 -3 -2 -1 1 2 3 4 5 -7 +5
When you ADD a
POSITIVE NUMBER =
4 + (-7) =
When you ADD a
NEGATIVE NUMBER
(-7) = -3

10. Addition Using a Number Line
-1 + (-4) + 9 -5 -4 -3 -2 -1 1 2 3 4 5 +9 -4
-1 + (-4) =
When you ADD a
NEGATIVE NUMBER =
When you ADD a
POSITIVE NUMBER
-1 + (-4) + 9 = 4

11. Try It Out 1). -3+ 10 + (-5) = 2 2). -13 + 8 + (-6)
1) (-5)
2) (-6)
3). (-7) + (-4) + 4
4) (-17) + 9
5) |-10| + (-7)
= 2
= -11
= -7
= 7
= -5

12. Negative or Positive? 7 + (-4) -13 + 11 -3 + 3 -7 + (-6)
Without solving the problem, decide whether the sum will be positive, negative, or zero.
7 + (-4)
negative
positive
-3 + 3
-7 + (-6)
negative
zero

13. “Integer” Cards Red cards = Negative Black cards = Positive
Jack = 11, Queen = 12, King =13
Dealer deals each player 2 cards.
The player with the highest sum, gets all the cards from that round.
The player with the most cards at the end of the deck wins!

14. Homework
Textbook page 54, #1-4 all, all, all, 56