Calculator, ONXE Standard Function Scientific Electronics Desktop Calculators
- Quick and easy tax calculation.Displays up to 12 digits. Extra-large LCD display.
- Percussion keyboard ergonomic design, clear sound, after 100 thousand times of tapping test, not easy to bond
- Tilted screen for easy and accurate screen reading.Perfect for office, school or home use.
- Two-way Power:1 Button Battery and 1 AA batteries (included) two kinds of power supply,Button Battery and 1 AA batteries, long battery life.
- Every product has been strictly tested, quality problems for 1 years free warranty, please contact us directly
This standard calculator is a must for any businessman, worker, teacher, student or anybody that needs to make any sort of calculation from time to time.
The calculator is made of good quality material and is well constructed.
The 12 digit display screen indicates your numbers in clear, dark lettering.
Both button battery and 1x AAbattery power ensure that you’ll always finish whatever you start, whenever and wherever you are so you don’t miss a step.
ONXE Electronic Calculator Instruction
Adds the number shown on the display to the number stored in the memory
Example:3*2 + 2*6. If you directly inputs these numbers to the calculator,you will see the wrong answer: 48.
If you press [3*2], [M+], [2*6], [M+], then press [MR] once, you will get the right answer: 18.
Subtracts the number shown on the display to the number stored in the memory.
[MR]: Recall the current memory register value.
[MC]: Clear the memory register (set to zero).
Whenever the [=] key has been pressed, the result will be stored into the Grand Total Memory.
Example:If you want to calculate [2*3+3*5+6*8],press [2*3=], then [3*5=], then [6*8=]. Then press [GT], you will get the right answer 
Which is for calculating GROSS PROFIT MARGIN (GPM)
. Example: Enter  then press the [÷], then  then press the [MU] key, you will see 117.65 (15% of this total equates to 17.65)
To Calculate[6 * 6 * 6* 6 + 1 + 1 = 1298]. You Press[6 * === + 1 == ]. You will see 
Clear all formats and zero