Which number sentence illustrates the commutative property of addition?

12 + 0 = 12

12 + 1 = 1 + 12

12 · 1 = 12

12 + (1 + 3) = (12 + 1) + 3

Question

Which number sentence illustrates the commutative property of addition?
		
12 + 0 = 12
		
12 + 1 = 1 + 12
		
12 · 1 = 12
		
12 + (1 + 3) = (12 + 1) + 3

kc_kennylau · Answer

Commutative property means that a+b=b+a

anonymous · Answer

The commutative property says it doesn't matter what order you add two things in, you get the same amount.   Like,   2 apples + 3 apples is the same as 3 apples + 2 paples.

Given that,  can you see it?

anonymous · Answer

http://www.coolmath.com/prealgebra/06-properties/01-properties-commutative-addition-01.htm

kc_kennylau · Answer

http://www.aaamath.com/pro74ax2.htm

anonymous · Answer

@kc_kennylau so B?

anonymous · Answer

It means that the left and the right side of the equation both have the same amount

anonymous · Answer

(so, Kc, we meet again....*whistle*)

kc_kennylau · Answer

hi @farabor :)

anonymous · Answer

Is it B ?

kc_kennylau · Answer

exactly :D