1. How to subtract integers

2. Why change to addition problem
Subtraction is the opposite of addition
So we make things opposite

3. Step 1 Only make things opposite after the subtraction Example
-4 – 9 would read
negative four subtract negative nine
So, we only change subtract negative nine

4. Step 2 How do we change them
We know that taking away a negative thing is a positive situation
So, -(-3) will be + (+3)
We changed subtraction to adding and negative to positive

5. You try Only change them to addition problems 6- (-5) 6 +(+5) -10-(-4)
-10 +(+4)

6. Other type When we take way a positive thing
We know it is a negative situation
So 7 – 19
we change subtraction to addition
and positive 19 to -19

7. You try
Only change to addition problem
4-10
4 + (-10)
16-20
16 +(-20)

8. Now we have addition problem
Follow the same steps when we added integers
What do we have more of
Answer will be that sign
Signs same or different
Same add, different subtract

9. You try whole process
1. -3 –(-6) -3 +(6) more positive signs different, subtract -3 +(6)= (-11) More negatives Signs same, add -7+(-11)=-18