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I think the answer is zero, too.
-1 + (2x1) is 2 -1= 1 then you have -1 so that should equal zero....IMHO
 

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moneca said:
I think the answer is Zero
can someone one help please
I won a prize and I have to answer
-1+(2x1)-1
Thank you so very much in advance Moneca
You are correct.
You do the math in the parentheses first: 2 x 1 = 2
Then you do the rest
minus one plus two minus one = 0
-1+2-1=0
 

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Always use PEMDAS
P-parentheses
E - exponents
M-Multiply
D - Divide
A - Add
S - Subtract
-1+(2x1)-1
-1+(2)-1
+1 -1
0
 

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ZERO. A big, fat goose egg.
 
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