Naomi added three mixed numbers as shown below.

Add: 358+(216+238)
Step 1 =358+(238+216)
Step 2 =(358+238)+216
Step 3 =6+216
Step 4 =816
Which statement best evaluates Naomi’s work?

1. She used the commutative and distributive properties correctly and got the correct answer.

2. She used the commutative and distributive properties correctly and got the correct answer.

3. She used the commutative and associative properties correctly and got the correct answer.

4. She used the commutative and associative properties correctly and got the correct answer.

5. She used the commutative and distributive properties correctly but got an incorrect answer.

6. She used the commutative and distributive properties correctly but got an incorrect answer.

7. She used the commutative and associative properties correctly but got an incorrect answer.

8. She used the commutative and associative properties correctly but got an incorrect answer.