1. Integers

2. Negative & Positive Whole Numbers

3. Zero Principle + = zero Adding Integers Using the Zero Principle
Zero Principle: +2 and -2 are opposite integers
So, they cancel each other out
+ = zero - + - +

4. Adding Integers - Zero Principle
Example: (+3) + (-2) = (+1) + + - + - +

5. Adding Integers - Zero Principle
Example: (+8) + (-5) = (+3)

6. Adding Integers - Zero Principle
Example: (- 7) + (+4) = (-3)

7. Snake Game (+3) + (-2) + (-7) + (+11) = ( )
(+3) + (-2) + (-7) + (+11) = ( )
(-5) + (-3) + (+6) + (+1) + (-10) = ( )

8. Thermometers Start at 20 oC Temp. drops 5 oC Temp. increases by 7 oC
What is the temperature?

9. Make Up Your Own Question

10. Elevation Climb up to 50 m Go up 5 m more Run down 20 m Go up 75 m
Q: How high up the mountain are you?
100 m
75 m
50 m
25 m
0 m

11. Make up Your Own Question
Q: How high up the mountain are you?
100 m
75 m
50 m
25 m
0 m

12. Integer Jeopardy