Question

which property is presented ; commutative , associative , or identity ?
1. 0 + 45 = 45

2. (r+s) + t = r + (s+t)

3. (4 divided by 2) divided by 9 + 11

Answer 1

1 - Identity.
2 - Associativity.
Can you state no. 3 more clearly?

Answer 2

for no. 3 ; " divided by " just means the divison symbol sign

Answer 3

Yeah, ok, but I can't see that it demonstrates any of the above properties, it's not even an equality.

Answer 4

oh my bad i just realized that isn't the right one wells actually it is then : 84 x 3 =3x 84

Answer 5

Yeah, that's commutativity.