Question

Help? Step 2 and 3, for step 2, Associative property should be Commutative property, and step 3 should be Associative property instead of the Commutative property, I did all the work and its right, but how should I explain it?

Answer 1

I'm not sure if this is the answer your looking for but.....

the format should be something like :For step 2, you have to ______ , so it should be the _____ property instead of ________.
This leads to Step 3, where you/she (mistake)________, but this is wrong because your supposed to ________.

hope this answered your question :)