Motorola 280 - Manual (Page 136)

Calculator
134
The calculator can perform the following functions:
Function Description
. Insert a decimal point
C Clear the calculation
CE Clear entry (replaces the C function when you
enter subsequent values in a calculation)
+ Add
- Subtract
x Multiply
÷ Divide
MS Store the current value in memory (overwrites
values already stored)
MC Clear the value stored in memory
MR Replace the displayed value with the value
stored in memory
= Calculate the result
% Divide the displayed value by 100
± Change the entry’s sign (positive/negative)
$ Calculate the exchange rate