Addition properties
Before diving deep into addition, we must remind ourselves of the three properties of addition. These properties help you when you add! You probably already know these rules, but might not know their specific names. The three properties of addition are:
COMMUTATIVE PROPERTY
ZERO PROPERTY
ASSOCIATIVE PROPERTY
COMMUTATIVE PROPERTY
ZERO PROPERTY
ASSOCIATIVE PROPERTY
Commutative propertyDEFINITION: Changing the order of the numbers added does not change the sum (answer) EXAMPLE: 
Zero Property

Associative propertyDEFINITION: Grouping addends in different ways does not change the sum (answer) EXAMPLE: 
Review the three addition properties by viewing the following presentation: