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Full Version: Did you pay attention in school?
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[Image: 2-2.jpg]
-1 ....
0....
2-2 is nothing, times 2 is still nothing, which leaves 1.

Tom
-3 watch your order of operations
We suck. It look's like Arvid was the only one not sleeping in math class. :)

Tom
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.
Zero - you cannot multiply by zero and get anything but zero.
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
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!
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