math
posted by
cody on
.
What property of addition is shown in the following number sentence? why?

math  incomplete 
Ms. Sue,
No number sentence given.

math 
cody,
opps sorry 7+(3+5)=(7+3)+5

math 
Jen,
Associative property, because the parenthesis are just moved around.

math 
TutorCat,
http://www.algebra.com/algebra/homework/Distributiveassociativecommutativeproperties/changethisname23395.lesson

math 
Adna,
Explain why 7*8 is not a number sentence