Genie D69 Plus Manual De Instrucciones página 14

9. Using the Independent Memory
Press this key in place of
division operation to add the result of the operation to memory
contents. Pressing this key at any other time adds the displayed
value to memory contents.
Press this key in place of
division operation to subtract the result of the operation from
memory contents. Pressing this key at any other time subtracts
the displayed value from memory contents.
Press this key to display memory contents.
Press this key to clear memory contents.
at the end of a multiplication or
at the end of a multiplication or
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