Just found this when I was doing a simple sum, lol what are the chances of this?
I have reported to Apple.
Summary:
Specific Calculation in calculator causes '0' error.
Steps to Reproduce:
Open up dashboard calculator. Type 54 - 27 press the '=' nothing happens, press again and it displays '0'.
Expected Results:
Correct answer.
Actual Results:
When '=' is pressed, nothing happens, press again and it displays '0'.
Regression:
Always happens.
Notes:
I have noticed that this problems occurs EXACTLY the same on the iPhone latest OS as well.

I have reported to Apple.
Summary:
Specific Calculation in calculator causes '0' error.
Steps to Reproduce:
Open up dashboard calculator. Type 54 - 27 press the '=' nothing happens, press again and it displays '0'.
Expected Results:
Correct answer.
Actual Results:
When '=' is pressed, nothing happens, press again and it displays '0'.
Regression:
Always happens.
Notes:
I have noticed that this problems occurs EXACTLY the same on the iPhone latest OS as well.