TheTechnomancer said:
I agree that -1 is just subtracting one from the total, but what we're taught in school is that the order of operations is that you do addition then subtraction. So taking this to the logical conclusion would lead to the answer being 4. I don't like it but thats what we're taught.
If that's what you were taught at your school, they taught you incorrectly.
http://www.mathgoodies.com/lessons/vol7/order_operations.html
http://en.wikipedia.org/wiki/Order_of_operations#The_standard_order_of_operations
http://www.mathsisfun.com/operation-order-pemdas.html
And I could keep going, but the point you should be getting is that you just go left to right with addition and subtraction once you get to them. Addition does not take precedence over subtraction.
Thus you get:
1+1+1+1+1+1+1+1+1+1-1+1+1+1+1+1+1*0
1+1+1+1+1+1+1+1+1+1-1+1+1+1+1+1+0
2+1+1+1+1+1+1+1+1-1+1+1+1+1+1
3+1+1+1+1+1+1+1-1+1+1+1+1+1
4+1+1+1+1+1+1-1+1+1+1+1+1
5+1+1+1+1+1-1+1+1+1+1+1
6+1+1+1+1-1+1+1+1+1+1
7+1+1+1-1+1+1+1+1+1
8+1+1-1+1+1+1+1+1
9+1-1+1+1+1+1+1
10-1+1+1+1+1+1
9+1+1+1+1+1
10+1+1+1+1
11+1+1+1
12+1+1
13+1
14
Of course, you can drop the +0 much earlier because it's 0. But subtraction has the same priority as addition, so you do it when you get to it. You don't bracket it off and do it last (unless the problem in question comes with it already bracketed off, but this one doesn't).
Hexenwolf said:
They simply have to put one before the other for the acronym because that's how language works, there isn't a single word that means both.
Well if Hollywood and it's bullshit has taught us anything, just make language work like that. If we have to hear shit like Brangelina and Bennifer, let's just go nuts and start saying "multiplivision" and "addtraction" or something.
...Or head over to Hollywood with flamethrowers and make them pay for crimes against the English language. Whichever more people want to do, I'm not going to be picky on this one.