# Addition and Subtraction Properties

### Commutative Property

The first thing you should know about Addition is that the order of adding is not important.

They even have a complicated name for it: Commutative Property.
Here, look at this: You see? When we add the numbers - we get the same result on both sides: ### Associative Property

The same goes for 3 or more numbers. You can add in any order you like - you'll get the same result.

This one is called (don't try to remember it): Associative Property.
Here, we start the same on both sides: but group (add) numbers differently: and at the end - we get the same result: ### Adding a zero

Finally, adding a zero - is actually adding noting - or more accurately not adding anything: ## Something about Subtraction

OK, let's see what applies to Subtraction.
Here, check this out:

### Subtraction - Addition connection Then see this: Do you see? This is why: And that is the conneciton between Addition and Subtraction.

### Subtracting a zero

And of course, subtracting a zero from a number makes no difference also: If we take away zero = nothing, then we did not take anything. :-)