Unit 1: Integers

 Subtracting Integers can be tough; however, the trick is to make the subtraction problem into an addition problem! = ______Can be rewritten as5+6= ______ 5- 6 = ______ Can be rewritten as = ______ = ______ = ______ = ______ = ______

 Whenever you subtract, it’s the same as adding the opposite = ____ Whenever you subtract by a positive number, it’s the same as adding a negative number = ____ = ____  = ____ 

 Whenever you have two negatives next to each other, make them both positive! = ____ = ____ 3 +2 = ____ = ____  

 That’s it! Here are some more practice problems to try… = ____ = ____ = ____ = ____ = ____ = ____ = ____ = ____

 Still having trouble?  Look at these four subtraction problems: 5 – 3 = ____ This can be re-written as: =____ So the answer is = ___ This can be re-written as: = ___ So the answer is = ___ This can be re-written as: 5 +3 = ___ So the answer is = ___ This can be re-written as: = ___ So the answer is -8. These are the only 4 types of subtraction problems you will ever see!

5 - 3 = 2 For a problem like this, you can either draw a number line or watch this little demo: First, you go up 5 Then, you go down 3

= -8 For a problem like this, you can either draw a number line or watch this little demo: Starting from zero, we go down to negative 5. Then, since we are subtracting, we go down 3 more So, we end at -8. Notice, we started with a negative, and subtracting a positive just gave us a bigger negative!

 I hope this helps!  Just remember:  A subtraction problem can always be written as an addition problem (change the minus sign to a plus and take the opposite of the next number)!  If you minus a negative, you can turn both of those into positive signs!

 This has been a Rockin’ Presentation by: Mr. Lattyak