8 DIGIT DISPLAY FEATURES Large, 8-Digit Display – big, easy-to-read DUAL POWER LCD numbers. DESKTOP CALCULATOR Four Function Memory – includes addition, subtraction, recall, and clear. UNV-15925 Owner’s Manual OPERATING THE CALCULATOR ON/C•CE Key – Power ON / Clear LCD / Clear Entry. Power OFF after a few minutes if no button is pressed. If a result is too big to show in the LCD, the calculator stops and displays E. Press ON/C•CE to continue. Metal Carrying Case – Protects the calculator wherever you go. +/– Key – Press to change the displayed number from positive (+) to negative (–) or from negative (–) to positive (+).MINUS – is d i s p l a y e d w h e n the v a l u e is negative. Dual Solar/Battery Power – built-in solar panel extends battery life by powering the calculator in the light. Automatic Power Off – saves battery power by turning off the calculator if it is left unused for about 7 min. PERFORMING CALCULATIONS Addition (+) Example: 6 + 7 = 13 Press  [+]  [=] 13 Subtraction (–) Example: 10 – 4 = 6 Press   [–]  [=] 6 Multiplication (x) Example: 7 x 5 = 35 Press  [x]  [=] 35 Division (∏) Example: 14 ∏7 = 2 Press   [∏]  [=] 2 Square Root ( ∏ ) Calculate the square root of 64 Press   [∏] 8 MEMORY FUNCTIONS Percentages (%) [M+] Press to add the displayed number to Calculate 6% of 200. memory MEMORY is displayed. [M–] Press to subtract the currently displayed number from memory. [MR] Recall the number in memory. [MC] Clear the memory. Press    [x]  [%] Add 6% tax to a $20 purchase. Press   [+]  [%] Calculate 20% discount from $150. Press    [x]   [%] 12 21.2 30 REPLACING THE BATTERY CARE AND MAINTENANCE 1. Remove the two screws on the rear panel. Using a flat edge, pry open the rear panel. • Keep the calculator dry. If it gets wet, dry it before use. • Do not use harsh solvents or detergents to clean the unit. • Do not drop or strike the calculator. 2. Slide out the old battery. Insert the new battery with the + side up. 3. Replace the rear panel.
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