Question about Sharp EL-520WBBK Calculator

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How do I change a number from + to - and vice versa. I find the manual(?) lacking in answering such a basic question

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  • brian_cherno Sep 06, 2010

    I can change a number to -, but I can't change a result from to -. and vice versa. Example divide 4 by 2. answer 2. press /- key to change sign. My calculator gives me 0. I see (-0)= in top left hand side. Maybe the calculator is defective?



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Use the +/- key between the decimal point and the equals.

Posted on Sep 04, 2010

  • kakima Sep 06, 2010

    To do anything with an existing result, you need to use Ans.

    To change the sign, press /- 2ndF Ans. Ans is the shifted function of the = key.



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