1. Title of Notes: Subtraction Integers pg. 8 RS

2. PICK A VOCABULARY WORD AND WRITE THE DEFINITION. CHAPTER 3
Bell work – 5 minutes
PICK A VOCABULARY WORD AND WRITE THE DEFINITION.
CHAPTER 3

3. The additive inverses (or opposites) of two numbers add to equal zero.
Example: The additive inverse of 3 is
-3 Proof: 3 + (-3) = 0 We will use the additive inverses for subtraction problems.

4. What’s the difference between 7 - 3 and 7 + (-3) ?
Subtraction Rule
What’s the difference between and (-3) ?
7 - 3 = 4 and 7 + (-3) = 4
The only difference is that is a subtraction problem and 7 + (-3) is an addition problem.
“SUBTRACTING IS THE SAME AS ADDING THE OPPOSITE.”
(Keep-change-change)

5. When subtracting, change the subtraction to adding the opposite (keep-change-change) and then follow your addition rule.
Example #1: (-7) (+7) Diff. Signs --> Subtract and use larger sign. 3 Example #2: (-7) Same Signs --> Add and keep the sign. -10

6. Video: Subtracting Integers 1:38 – 6:00
Grab a small whiteboard!

7. Notebook Activity Pg. 8 LS
Create a full page billboard on subtracting integers. Remember be creative. A billboard needs to catchy and fun so people will look at it.

8. Workbook pages 211 - 228 Start in class and finish as homework