I originally thought it would be 0. ie 9-9=0. 0/9=0. 0+9=9....

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    I originally thought it would be 0. ie 9-9=0. 0/9=0. 0+9=9. 9-9=O. O/9=O. Therefore the answer would be zero however the calculator says 16. So what's the correct answer?
    Last edited by Dibbly: 26/05/22
 
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