How can we help?

You can also find more resources in our Help Center.

Properties of Addition

Identity Property
You do not change the identity of whatever you are working with.
*Add zero to it and you still get the same number as your answer
Ex: a+0=a or 5+0=5
Inverse Property
Adding a number with the opposite of that number (such as negative or positive) makes it into a zero.
Ex: 5+ -5 = 0
Commutative Property
Adding the two same numbers while having the SAME ANSWER on both sides of the equal sign.
Ex: a+b=b+a or 3+4=4+3
Associative Property
What numbers are getting associated with what numbers (You should get the same answer on both sides of the equal sign)
Ex: 2+(3+4)=(2+3)+4