problem in calculator casio fx991ms

i have casio fx991ms. there is a problem in that. for example for 2+2 the result it shows is 00000. what could be the problem. can anyone help me please

Replies

  • Nachko
    Nachko
    Most likely the reason is weak battery. Replace it (one AA battery). Or you may ask for help here:

    Inquiry Form - CASIO

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