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 Everyday Examples
 Commutative Property of Addition:  The sum of a group of numbers is the same regardless of the order in which the numbers are arranged.

Image source: http://www.nofavt.org/imgs/Conference09.jpg

Book publishers sometimes send partial orders of textbooks to schools if they do not have enough in stock, or if there is a very large order that will come in several shipments. If the school ordered 500 history books, they might receive 200 at first and then 300 later, or 300 at first and then 200 later. Either way, they will eventually receive the right amount from their order.