MathVillage

Learn how to add positive and negative integers. $$-5\,+\,-7\,\,\mbox{         }-12\,+\,(+4)$$

Integers are a lot like the whole numbers that you already know.  The main difference is that there are negative integers as well as positive integers.  Zero is also an integer, but it is neither positive nor negative.  Here is one way we can picture the set of integers: