1. Subtracting Integers
Ch. 11-2D

2. 4 + (-3)
= 1
Here is what adding integers means. -1 1 2 3 4 5

3. -2 + (-3)
= -5 -5 -4 -3 -2 -1 1

4. 2 – 3
= -1
Here is what adding integers means. -1 1 2 3 4 5

5. You can change all problems to ADDING!
1) Normal looking problem
2 - 3
Same Change Change
2 +(-3)
= - 1
Same Change Change
Then follow addition rules!

6. -2 - 3
= -5 -5 -4 -3 -2 -1 1

7. You can change all problems to ADDING!
2) Same Signs
-2 - 3
Same Change Change
-2 +(-3)
= - 5
Same Change Change
Then follow addition rules!

8. 2 – (-3)
= 5
Here is what adding integers means. -1 1 2 3 4 5

9. You can change all problems to ADDING!
3) Double Negatives
2 – (-3)
When 2 negatives are next to each other they BOTH become positives!!!
2 + (+3)
= 5
Same Change Change
Then follow addition rules!

10. -2 – (-3)
= 1 -5 -4 -3 -2 -1 1

11. You can change all problems to ADDING!
4) ALL Negatives
-2 – (-3)
ONLY the 2 negatives next to each other change!
-2 + (+3)
= 1
Same Change Change
Then follow addition rules!

12. Lets Practice 5 – 7 -9 – (-4) -1 – 5 5 + (-7) -9 + (+4) -1 + (-5) -2-6
8 – 3
-6 – 2
3 – (-7) 5
-6 + (-2)
3 + (+7) -8 10

13. Watch for multi-step problems
-4 – (-7) – 8
9 – (-4) – (-3)
3 – 8
13 – 8 5 -5