Steps

Casio FX-CW series (FX-83GT CW, FX-85GT CW, FX-570CW, FX-991CW)

  1. Turn on your calculator. Press the ON button, which is at top-left corner of the button placement.
  2. Press OK button, if on application menu. This will be taken to a selected application.
  3. Press the Settings button. It resembles sliders, and is found directly below the ON button. This will be taken to settings application.
  4. Navigate to Reset. Press the down arrow twice to select Reset and select the right arrow button.
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