However.
I recommend you read http://en.wikipedia.org/wiki/Order_of_operations and rewrite the answers to the last question.
I don't remember your #s, but your equation was something in the form of:
A + B - C X D
Under basic mathematics, we should multiple C X D first, getting, say, E
A + B - E
Then we would add A and B, and subtract E from that sum.
In the case of your last question, I believe the answer should've been something in the negative range.
Your given correct answer, however, presumed that people were to go straight through by adding A and B, subtracting C, then multiplying that # by D, which ended up at 1080. That math is incorrect.




