
PERFORMING CALCULATIONS
FEATURES
UNV-15925
8DIGIT DISPLAY
Owner’s Manual
OPERATING THE CALCULATOR
MEMORY FUNCTIONS
REPLACING THE BATTERY
1. Remove the two screws on the rear panel.
Using a flat edge, pry open the rear panel.
2. Slide out the old battery. Insert the new
battery with the + side up.
3. Replace the rear panel.
Addition (+)   Example: 6 + 7 = 13
Press [6] [+] [7] [=] 13
Subtraction (–)  Example: 10 – 4 = 6
Press [1] [0] [–] [4] [=] 6
Multiplication (x)  Example: 7 x 5 = 35
Press [7] [x] [5] [=] 35
Division (∏)  Example: 14 ∏ 7 = 2
Press [1] [4] [∏] [7] [=]   2
Square Root ( ∏  ) 
Calculate the square root of 64
Press [6] [4] [∏]8
Percentages (%)
Calculate 6% of 200.
Press [2] [0] [0] [x] [6] [%] 12
Add 6% tax to a $20 purchase.
Press [2] [0] [+] [6] [%]  21.2
Calculate 20% discount from $150.
Press [1] [5] [0] [x] [2] [0] [%] 30
CARE AND MAINTENANCE
ON/C•CE Key – Po wer  ON  / Cl ear  LC D / 
Clear En try. Pow er OFF af ter a few  minutes  
if no  button  is pr essed.  If a  result  is to o big 
to show in the LCD, the calculator stops 
an d  d i s p la y s  E.  P r es s  ON/C•CE t o  
continue .
Metal Carrying Case –  Pr o te ct s  t he  
calculat or wherev er you go.
+/– Key –  Pres s t o ch ange  th e di spla yed 
num ber  fro m  posi tiv e ( +)  to  neg ativ e  (–) 
or  from negati ve (–) t o positive  (+).MINUS  – 
i s  d i s p la y ed   w h e n  t h e   v a l u e   i s  
neg ati ve.      
[M+]Press to add the displayed number to 
 memory
MEMORY is displayed.
[M–]Press to subtract the currently  
 displayed number from memory.
[MR]Recall the number in memory.
[MC]Clear the memory.
Large, 8-Digit Display – bi g, eas y-to-r ead 
LCD numbers.
Four Function Memory – include s addition, 
subtraction, recall, and clear.
Dual Solar/Battery Power – built-i n solar 
panel extends battery life by powering the 
calculator in the light.
Au tom at ic  Po we r  Of f –  s av es  ba tt er y 
power by  turning  off the  calculator  if it  is left 
unused for about  7 min.
• 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.