Out of 8 Ratings

Owner's of the Casio Calculator fx-115ES gave it a score of 4.4 out of 5. Here's how the scores stacked up:
  • Reliability

    4.38 out of 5
  • Durability

    4.5 out of 5
  • Maintenance

    4.38 out of 5
  • Performance

    4.5 out of 5
  • Ease of Use

    4.0 out of 5
of 75
Inputting Answer Memory Contents into an Expression
Example: To perform the calculations shown below:
k Independent Memory (M)
You can add calculation results to or subtract results from
independent memory. The “M” appears on the display when
independent memory contains a value.
Independent Memory Overview
The following is a summary of the different operations you can
perform using independent memory.
To do this: Perform this key operation:
Add the displayed value or
result of the expression to m
independent memory
Subtract the displayed value
or result of the expression from 1m(M–)
independent memory
Recall current independent
memory contents
•You can also insert the M variable into a calculation, which tells
the calculator to use the current independent memory contents at
that location. The following is the key operation for inserting the M
The “M” indicator appears in the upper left of the display when
there is any value other than zero stored in independent memory.
Independent memory contents are maintained even if you press
the A key, change the calculation mode, or turn off the calculator.
123 + 456 = 579 789 – 579 = 210