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This calculator has a limited accuracy and rounding errors may occur, especially in long 
divisions.
1. Press Menu, select Extras and Calculator.
2. When ’0’ is displayed on the screen, key in the first number of the calculation, 
press   for a decimal point.
3. Press Options and select Add, Subtract, Multiply, Divide, Square, Square root, 
or Change sign.
Tip: Alternatively, press   once to add, twice to subtract, three times 
to multiply or four times to divide.
4. Key in the second number.
5. For the total, press Options and select Equals. Repeat steps 3 to 5 as many 
times as is necessary.
6. To start a new calculation, press and hold Clear first.
Making a currency conversion
1. Press Menu, select Extras and Calculator.
2. To save the exchange rate, press Options and select Exchange rate. Select 
either of the displayed options. Key in the exchange rate, press   for a 
decimal point and press OK. The exchange rate remains in the memory until 
you replace it with another one.