What key is mr in the calculator?

In the calculator, mr stands for Memory Recall, which is a memory recovery key that can display the current calculation results; when there is data stored in the memory, press the mr key to recall the data in the memory. The data is displayed on the screen.

The mr on the calculator stands for Memory Recall, which can display the results of the current calculation. In addition, there are keys such as MC, M-, and M on the calculator. Bit, MC means Memory Clean, which will clear the saved calculation results to zero. M- means recording the current number and adding it to the accumulated number in the form of a negative number. M means recording the current number and adding it to the accumulated number.

M, M-, MR, MC are the storage keys of the calculator

• M key: When the calculation result has appeared on the screen or After a certain value, press the M key, and the calculator will store the numbers on the screen into the memory. At this time, the calculation is interrupted, and you can restart with new numbers to perform new calculations. If you press the M key again, the calculator will The current number on the screen is added to the number just stored in the memory, and then the calculation result is stored in the memory.

  For example: press these keys: 45×3= M 12×3= M

  When "45×3=" is pressed, 135 will appear on the screen. At this time, press "M" key will store 135 in the memory. You can continue to press other data to start a new calculation. After pressing "12×3=", 36 will appear on the screen. At this time, press "M" again to calculate The processor operates internally, adds 36 and 135, and stores the final result 171 in the memory.

• M- key: M- is the opposite of M, which is to subtract the number on the current screen from the data in the memory, and then store the result.

• MR key: When there is data stored in the memory, press the MR key to display the data in the memory on the screen

• MC key: Clear the data stored in the memory and reset the numbers to zero.

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