1. 1-7 Subtracting Integers
The temperature was 6 F at 11:00AM and -4 F at 11:00 PM.
What is the difference in temperature from 11:00 AM to 
11:00 PM?
Hint: Use a number line
How did you do this problem?
What operation does the word "difference" tell us to do? What is the mathematical 
equation you would do to solve this problem?

2. 1.) -3 5 2.) 7 9 You can use a number line to subtract integers.
When subtracting a positive number you move to the left on the number line.
Use the number lines below to answer each question
1.)
2.)

3. 1.) 2 (-5) 2.) -3 (-4) You can use a number line to subtract integers.
When subtracting a negative number you move to the right on the 
number line.
Use the number lines below to answer each question
1.) (-5)
2.) (-4)

4. Rule:
To subtract integers, add the opposite
Rewrite each problem as an addition 
problem, then solve.
1.) (-6)= 2.) 7 - 8
3.) 2 - (-9) =  4.) -5 - (-6)
5.) -9 - (-7) 6.)

5. 7.) =  8.) 33 - (-18) =
9.) = 10.) 0 - (-24) =
11.) (-12) = 12.) 3 - (-3) =
13.) = 14.) =
15.) = 16.) |-5|-|6|=
17.) |9|- |-5| 18.) 9-(-5)=
19.) 54 - (-72) = 20.) =