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Puzzling

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  • 1
    $\begingroup$ I hate when my calculator breaks on decimals. $\endgroup$
    – Rubio ♦
    Commented Apr 9, 2017 at 23:14
  • 1
    $\begingroup$ If anyone has more convoluted calculators, I'll post them as extra bonuses! $\endgroup$
    – boboquack
    Commented Apr 9, 2017 at 23:16
  • 2
    $\begingroup$ @Penguino Done! I've assumed (like on my own calculator) that the negative sign displays on the leftmost 7-segment LED, and ignored the LED second from the right completely $\endgroup$
    – boboquack
    Commented Apr 10, 2017 at 0:02
  • 1
    $\begingroup$ On small comment. In third and forth bonus parts you got 8x4-4=20. That's not right. This does not break the approach. It's just confusing. :) Also, the same bonuses 3 & 4 state 8+4-2 but the examples shown use 8+4-4. $\endgroup$
    – Marius
    Commented Apr 10, 2017 at 6:18
  • 3
    $\begingroup$ My calculator's battery is flat so it can't display any digits at all. But I know the buttons that were swapped are looser than the other two. But I only get to mash my palm against the keypad once... $\endgroup$
    – Stack Exchange Supports Israel
    Commented Apr 11, 2017 at 2:07