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To do simple arithmetic click the number buttons or type them on your keyboard and then press the sign for addition, multiplication, subtraction, or division. You can also type in the numbers and press :guilabel:`+` for addition, :guilabel:`-` for subtraction, :guilabel:`x` for multiplication and the division symbol for division. To view the answer press the button that is an :guilabel:`=`. To enter a percetnetage press :kbd:`%` or left click :guilabel:`%`. To view a summary of each button you can mouse over to get a verbal description of the button. If you make a mistake entering in a number you can press the :kbd:`Backspace` key.
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To do simple arithmetic click the number buttons or type them on your keyboard and then press the sign for addition, multiplication, subtraction, or division. You can also type in the numbers and press :guilabel:`+` for addition, :guilabel:`-` for subtraction, :guilabel:`x` for multiplication and the division symbol for division. To view the answer press the button that is an :guilabel:`=`. To enter a percentage press :kbd:`%` or left click :guilabel:`%`. To view a summary of each button you can mouse over to get a verbal description of the button. If you make a mistake entering in a number you can press the :kbd:`Backspace` key.
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