Question

Which of the following best shows the commutative property of addition?
4 + 5 = 9
4 + 5 = 4 + (2 + 3)
4 + 5 = 4 - (-5)
4 + 5 = 5 + 4

Answer 1

Answer:

I think it's number 2 but I'm not sure

Answer 2

4+5=5+4
Commutative property = a+b=b+a