The** commutative property of addition** lets us change the position of **addends** (numbers being added together) that are being added together in an expression without changing the end result - no matter how many addends there are!

We can use the commutative property in simple expressions *as well as* algebraic expressions, and more!

**Let's define the commutative property of addition as:**$a+b=b+a$

**and in an algebraic expression:**$X+number=number+X$