Samsung SPH-M100SS-XAR - Manual (Page 112)

Section 13
104 Personal Information Management (Calendar)
5. Press digit keys to enter the second number of your
calculation.
6. Press to perform the calculation and see the
Result , or:
ᮣ
You can continue to perform calculations with the
same operator or change the operator and continue
your calculations. Every time that you change the
operator, the previous calculation is performed and the
result is displayed as the top number in the display.
7. Press to perform the calculation and see the
Result .