Adding and Subtracting Integers


Representing Integers
Review: Real-World Integers:

Students must be able to represent positive and negative integers using algebra tiles or double-sided counters. One yellow tile represents +1 and one red tile represents -1.


Adding Integers with Tiles


Adding Integers on a Number Line



Subtracting Integers with Tiles
When subtracting, you may not always have the tiles that you need to take away. This is when it is very important to understand zero pairs.


Subtracting Integers on a Number Line

Subtracting Integers Video Tutorial

PBS Math: Adding Negative Numbers


PBS Math: Subtracting Positive and Negative Numbers


Practice!
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