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Using Tools and Playing the Game
MR Display the value currently stored in memory.
M+ Add the displayed digit to the value stored
in memory.
MC Clear the value currently stored in memory.
±
Change the sign of the displayed number.
Clear one function or one digit from the screen
and return the calculator to digit entry mode. Hold
down to clear all of the digits and operations and
display a zero.
Exit the calculator and return to home screen.