Posted by Laruen on Tuesday, November 15, 2011 at 8:05pm.
What property is for 9 + n = 9 + n ?

Math  Ms. Sue, Tuesday, November 15, 2011 at 8:09pm
http://www.mathsisfun.com/associativecommutativedistributive.html

Math  MathMate, Tuesday, November 15, 2011 at 8:10pm
commutativity (i.e. can be switched around, Fr. commutateur=switch)

Math  Laruen, Tuesday, November 15, 2011 at 8:12pm
Commutative Property of Addition ?
I did read it Im just making sure if I'm correct. 
Math  Laruen, Tuesday, November 15, 2011 at 8:17pm
Is that the right answer to the question?

Math  Ms. Sue, Tuesday, November 15, 2011 at 8:19pm
Yes. MathMate told you the answer 10 minutes ago.

Math  MathMate, Tuesday, November 15, 2011 at 8:22pm
Yes, you answer is correct.
Your answer is more specific than mine. It restricts the operation to addition, while commutativity applies also to some other operators such as multiplication. 
Math  Laruen, Tuesday, November 15, 2011 at 8:24pm
Ok
Thank You!!!
PS: I'll soon post math homework corrects (just 4 questions). I want to make sure if there any grammar mistakes and correct.