For question 1, Commutative property would be 1, The commutative property practically states you can change the order of the numbers without changing the entire problem…
Next, Associative property would have to be 3. It is just rearranging the parentheses around it will not change the result.
Finally, Identity property would just be 2.
For question 2, the sum of three and four would be 7. Because of the commutative property which allows the numbers to be switched without the sum changing…
Lastly for question 3, you could do the two combinations of 6+6 and 4+8 and you could even utilize the commutative property for 4+8, you could say one pair is, 4+8 and the other 8+4…
I really hope this helped