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 Everyday Examples
 Identity for Addition:  A number that can be added to any second number without changing the second number.
Suppose you are trick-or-treating on Halloween, and have 200 pieces of candy in your bag. If you show up to the door, and the house has run out of candy, then you will not get any more. The identity property of addition says that when you do not add any candy to the bag, you will have the same amount as you did before (200 pieces of candy).

And don't play any tricks on that neighbor without candy!