Simple calculator

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Operations history

Instructions for a simple calculator

To work with the calculator, you can use the numeric keys of the computer keyboard.

Button functions
  • 0
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    9
    — conventional numeric keys
  • — reset calculator
  • — addition
  • — subtraction
  • — multiplication
  • — division
  • — calculation of percent
  • — square root calculation
  • — Change the mathematical sign of the number on the display to the opposite