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Zero - you cannot multiply by zero and get anything but zero.
Hunting American dentists since 2015.
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The following 2 users Like awemawson's post:
f350ca (04-11-2017), EdK (04-11-2017)
04-11-2017, 07:12 AM
(This post was last modified: 04-11-2017, 07:13 AM by awemawson.)
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
Andrew Mawson, proud to be a member of MetalworkingFun Forum since Oct 2013.
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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!