1. Lesson 1
Adding Integers

2. Integers
whole numbers that are
positive
negative
zero

3. Is zero positive or negative?
Number line
Negative numbers
Positive numbers
< zero
> zero
Is zero positive or negative?
Neither

4. Absolute Value
how far a number is from zero

5. One Rule for Adding & Subtracting Integers
“Always go right on the number line unless you get turned around by a subtraction or negative sign."

6. 3 + 8 3 Sample 1 (Adding) Step 1: Draw your number line and zero
Step 2: Locate the beginning integer

7. Sample 1 continued (Adding)
= go right
3 + 8
Step 3: Determine your direction. 3 11
Step 4: Count out your moves
Step 5: The Answer Where do you end up?

8. Sample 2 (Adding a Negative)
-2 + (-8)
Step 1: Draw your number line and zero -2
Step 2: Locate the beginning integer. You can not go left or right with your starting integer. It is what it is!

9. Sample 2 continued (Adding a negative)
= go right
= turn left
-2 + (-8)
Step 3: Determine your direction.
-10 -2
Step 4: Count out your moves
Step 5: The Answer Where do you end up?

10. Complete the practice problems.
Worksheet Time
Complete the practice problems.

11. Lesson 2
Subtracting Integers

12. -2 - 8 -2 Sample 3 (Subtracting)
Step 1: Draw your number line and zero -2
Step 2: Locate the beginning integer

13. Sample 2 continued (Subtracting)
= turn left
-2 - 8
Step 3: Determine your direction.
-10 -2
Step 4: Count out your moves
Step 5: The Answer Where do you end up?

14. Complete the practice problems.
Worksheet Time
Complete the practice problems.

15. Lesson 3
Subtracting Integers

16. 2 - (-8) 2 Sample 3 Step 1: Draw your number line and zero
Step 2: Locate the beginning integer.

17. 2 - (-8) 2 10 Sample 3 continued = turn left = turn right
Step 3: Determine your direction. 2 10
Step 4: Count out your moves
Step 5: The Answer Where do you end up?

18. -2 - (-5) -2 Sample 4 Step 1: Draw your number line and zero
Step 2: Locate the beginning integer.

19. -2 - (-5) -2 3 Sample 4 continued = turn left = turn right
Step 3: Determine your direction. -2 3
Step 4: Count out your moves
Step 5: The Answer Where do you end up?

20. Complete the practice problems.
Worksheet Time
Complete the practice problems.