This screw is removable with the #0 Phillips screwdriver.

Insert the #0 Phillips screwdriver into the screw head.

Turn the screwdriver counterclockwise until the screw releases from the housing.

Carefully flip the calculator over and allow the screw to fall into the palm of your hand.

Note: The battery door may fall with the screw. If this is the case, place both parts into the small container for later use.

Place the screw into small container.