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+--- Thread: Did you pay attention in school? (/thread-3529.html)
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Did you pay attention in school? - Vinny - 04-10-2017
![[Image: 2-2.jpg]](http://metalshop.nobucks.net/pix/2-2.jpg)
RE: Did you pay attention in school? - arvidj - 04-10-2017
-1 ....
RE: Did you pay attention in school? - chucketn - 04-10-2017
0....
RE: Did you pay attention in school? - TomG - 04-10-2017
2-2 is nothing, times 2 is still nothing, which leaves 1.
Tom
RE: Did you pay attention in school? - f350ca - 04-10-2017
-3 watch your order of operations
RE: Did you pay attention in school? - TomG - 04-10-2017
We suck. It look's like Arvid was the only one not sleeping in math class. :)
Tom
RE: Did you pay attention in school? - Pete O - 04-10-2017
My answer to the question would have to be 'no', but I've had 38 years to make up for it. And I think Arvid has it.
RE: Did you pay attention in school? - Mayhem - 04-11-2017
Zero - you cannot multiply by zero and get anything but zero.
RE: Did you pay attention in school? - awemawson - 04-11-2017
The order of operations is:
BODMAS
(Brackets, Of, Division, Multiplication, Addition, Subtraction )
And I was taught that when I was 10 or 11 if not before !
As there are no brackets changing the order, the answer can only be -1
RE: Did you pay attention in school? - Vinny - 04-11-2017
You have the D and M switched from what I learned. We learned the last 4 stood for "My Dumb Ass Sister". Either way, M & D carry the same weight, as do A & S, so both ways are correct.
I came up with the same thing as Greg until I was reminded that subtraction is actually addition of negative numbers. Here's how Quora explains it:
2-2*2+1
Separate each number with corresponding sign
(2)+(-2)*(2)+(1)
then
(2)+(-2*2)+(1)
=>(2)+(-4)+(1)
=>(2)+(-4+1)
=>2+(-3)
=>2–3
=>-1
Even tho -3 makes more sense!