The order in which we add rational numbers always results in the same sum. This is stated by ___ property.
Commutative means changing the order of the operands does not change the result. Eg: 2 + 3 = 3 + 2.
If we add rational numbers in any order, their sum is always the same. This is stated by ___ property.
The ___ property states that we can add rational numbers in any order.