EC-342 (650-0860) Using the Calculator Faxback Doc. # 16781 You can use your EC-342 to perform standard arithmetic, memory, and percent calculations. CALCULATOR TIPS Use CALC/CE to enter the calculator function and to cancel the last entry. Press CALC/CE until 0 ) appears to clear the display for the next calculation. If the result of a calculation is more than 10 digits, E (000000000) appears. If E appears, press CALC/CE to clear the display. STANDARD CALCULATIONS Press the keys in the order the calculation would appear on paper. For example: You press: You see: 3+4= 7. 8x3-4= 20. NOTE: Press +/- to switch between positive and negative. MEMORY CALCULATIONS The memory Calculations feature lets you easily do multistep calculations. Use the following keys to perform memory calculations: Press ME/C twice 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 memory. Press MR/C again to recall (display) the value in memory. For example, enter (4x5)+(28+2)-(7-2)+(75/5) like this: You Press: You See: MR/C MR/C 0 4x5=M+ 20 28+2=M+ 30 7-2=M- 5 75/5=M+ 15 MR/C 60 CALC/CE 0 NOTE: M appears on the right of the display when you store a value in memory and disappears when you clear the memory. PERCENT CALCULATIONS Calculate percentages like this: To calculate: What is 12% of 150? You press 150x12% The display Shows 18. What percentage of 880 is 660? You press 660/880% The display Shows 75. What is a 3% markup added to 120? You press 120+3% The display shows 123.6 What is a 3% discount subtracted from 120? You press 120-3% The display shows 116.4 (/all-08/31/95)