1. Warm Up 8 + (-9) 14 + (-3) -11 + (-18) 6 + (-6) -4 + (-6) -13 + (-10)
Find each sum:
8 + (-9)
14 + (-3)
-11 + (-18)
6 + (-6)
-4 + (-6)
-13 + (-10)

2. Subtracting Integers

3. We can use tiles to subtract integers.
Remember:
 positive
 negative
Find -6 – (-2) . Start with 6 negative tiles, then take away 2 negative tiles.  -6 – (-2) = -4 

4. EAT!
Am I telling you to do something positive or negative?
POSITIVE

5. Do not EAT!
I told you to do the opposite of something positive.
NEGATIVE

6. Do Not not EAT!
I don’t want you to not eat! I’m back to telling you to eat! So 2 negatives make a POSITIVE!

7. Subtracting Negative Integers
Two negative become a positive!
4 – (- 3) – (- 2)

8. Try some!
Subtract:
-5 – 4
6 – 8
-3 – 5