# NexxTech 6500505 User Manual

## Digit pocket calculator, Features, A quick look at the calculator

OWNER’S MANUAL — Please read before using this equipment.

**8-Digit Pocket Calculator**

**FEATURES**

Your 8-Digit Pocket Calculator is small, yet it has the

features you use the most. It includes the four basic

math functions (addition, subtraction, multiplication,

and division), plus it has percentage, square root,

and memory functions. Its other features include:

**Dual Power** — the solar cell powers the calculator when

there is enough light, and the replaceable battery powers

the calculator when the light is dim.

**Large 8-Digit Liquid Crystal Display** —makes it easy to

read calculation results.

**Automatic Power Off** — conserves battery power by

turning off your calculator if you do not press a key for

about 7 minutes.

**A QUICK LOOK AT THE **

**CALCULATOR**

**ON/C**

** — Press **

**ON/C**

** to **

**turn on your calculator or to clear a calculation. **

**+/–**

** — Press to change the displayed num-**

**ber from positive (+) to negative (–) or from negative (–) to positive (+). **

**MINUS–**

** ap-**

**pears when the value is negative.**

**CE**

** — Press **

**CE**

** to clear an **

**incorrect entry before you press an operation key.**

**Note:** If you press an incorrect operator key (+, –, ×, or ÷),

simply press the correct one and continue with your calcu-

lation.

**ERRORS**

Your calculator displays

**ERROR**

and does not allow fur-

ther calculations if you:

• try to take the square root of a negative number.

• try to divide by zero.

• perform a calculation that results in an answer greater

than 99,999,999.

In this case, you can determine the approximate

answer by counting the number of digits displayed to

the left of the decimal point, putting that many zeros

on the right side of the number, then deleting the dec-

imal point.

For example, if the calculator displays

**ERROR**

**3423.8381**

,

the

approximate

answer

is

342,383,810,000. To clear the error and continue the

calculation with the displayed number, press CE.

To clear the entire calculation, press

**ON/C**

.

**PERFORMING CALCULATIONS**

**To Calculate **

**You Press**

**You See**

64

**64**

**8.**

$20 + 6% tax = 21.2

**20 + 6 %**

**21.2**

$150 discounted 20% = 120

**150 – 20 %**

**120.**

**Constant Calculations**

Press

**=**

to repeat the last function.

**To Calculate**

**You Press**

**You See**

5 Ч 5 Ч 5 Ч 5 + 2 + 2 = 629

5 x = = = + 2 = =

**629.**

For addition, subtraction, and division, the value you enter

before pressing

**=**

is the constant. For multiplication, the

value you enter before pressing × is the constant.

**Memory Calculations**

*To store a value in memory*, first press

(memory recall/

clear) twice to clear the memory, then press

**ON/C**

to clear

all calculations.

**6500505**

# Document Outline

- 8-Digit Dual-Powered Calculator 6500505
- Features
- A Quick Look at the Calculator
- Errors
- Performing Calculations
- Replacing the Battery
- 1. Place the calculator face down on a flat surface.
- 2. Use a Phillips screwdriver to remove the screw securing the back cover.
- 3. Slide the back cover down to remove it.
- 4. Remove the old battery.
- 5. Position the new battery so the positive (+) side is up, then press the battery into the battery holder.
- 6. Slide the front and back case halves back together, then reinsert and tighten the screw.

- Specifications