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How do you put in a negative sign?

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I want to resolve 1233*(-122*30), how do I input the negative sign?
asked May 3, 2013 by anonymous

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Best answer
You simply need to use the "(-)" key. You can find it into the keypad with numbers, don't use the "-" sign which will not work (this one is not an unary operator!)
answered May 3, 2013 by anonymous

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