I want to add something to my answer. I've been thinking about it (while cleaning my office - not like I'm obsessing or anything).
My "gut feeling" with this answer was to say it was 2, because of the way it's written. Sometimes I've found on tests you have to figure out what they want for an answer, which may not be what is technically correct. Which of course implies that math may not be as black-and-white as you'd think, that problems are open to interpretation, which is kind of weird, but anyway.
I think that if the intention were to get 288 as an answer, the question would have been written: (48÷2)(9+3) = ??? But because it lacked that one set of brackets, the author of the question wanted us to multiply 9+3 by 2 before dividing 48 by something. I've always felt that a number right next to a bracket implied a sense of urgency. But I still think the correct answer is 288.
And if you read this and rolled your eyes, you have a deeper understanding of why I am an English major.
