For example, to calculate 42:

You press

You see

 

 

4 =

16.

 

 

Memory Calculations

The memory calculation feature lets you do multistep calculations easily.

Use the following keys to perform memory calculations:

Press MC to clear the memory.

Press M+ to total a calculation and add the total to memory.

Press M– to total a calculation and subtract the total from the value in memory.

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Image 63
Radio Shack EC-291 owner manual Memory Calculations