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Cat612 · 08-09-2012

I'm too lazy to read through the answers, but

48/2(9+3)
Add 9+3 first (PEMDAS, P=parentheses)
Then it doesn't matter if you divide or multiply next, you'll get 288 in the end.

I think the problem is that people don't know that the M and D in PEMDAS are interchangeable, meaning one doesn't come before the other, but of you come across them together you do it in order of left to right.

Edit: checked my solution with Wolfram Alpha
http://m.wolframalpha.com/input/?i=48%2f2(9%2b3)

08-09-2012	54
Cat612 Scientist Join Date: Aug 2011 Location: California, USA Posts: 1,491	I'm too lazy to read through the answers, but 48/2(9+3) Add 9+3 first (PEMDAS, P=parentheses) Then it doesn't matter if you divide or multiply next, you'll get 288 in the end. I think the problem is that people don't know that the M and D in PEMDAS are interchangeable, meaning one doesn't come before the other, but of you come across them together you do it in order of left to right. Edit: checked my solution with Wolfram Alpha http://m.wolframalpha.com/input/?i=48%2f2(9%2b3)