Using Memory To store a number that you plan to use more than once in your calculations, use the memory display. Recall the number from memory when you need to use it again. The memory buttons are as follows: Button Function M+ Adds the contents of the accumulator to memory M- Subtracts the contents of the accumulator from memory MR Recalls data from memory and places it in the accumula- tor MC Clears the memory display Additional topics: * Entering Data from the Keyboard * Performing Arithmetic Functions * Clearing the Displays * Undoing the Most Recently Performed Function * Exiting Calculator * Using Calculator's Menus * Overview of Calculator