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Feature

Dual Power supply by Solar or 1 AA Battery
Automatically Power off, save more energy
Large non-stick plastic button, new material, more durable
Large eye-angled, upright display,Easy-To-Read
2 different functional calculators, 1 basic calculator, 1 updated calculator with root button

Description

[M+]
Adds the number shown on the display to the number stored in the memory
Example:3*8 + 2*6. If you directly inputs these numbers to the calculator,you will see the wrong answer: 156.
If you press [3*8], [M+], [2*6], [M+], then press [MRC] once, you will get the right answer: 36.

[M-]
Subtracts the number shown on the display to the number stored in the memory.

[MRC]
Combination of [MR] and [MC].
[MR]: Recall the current memory register value.
[MC]: Clear the memory register (set to zero).
When you press the key once, the [MR] key was activated, when you press the key twice, the [MC] was activated.

[GT]
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 69

[MU]
Stands for Mark Up, which is for calculating GROSS PROFIT MARGIN (GPM).
Example: Enter [100] then press the [], then [15] then [MU] key, you will see 117.65 (15% of this total equates to 17.65)

[CORRECT]
It helps you correct wrong number
If you want to press 458, but you pressed 459, you can then press [CORRECT] key to delete 9 and press [8] key again to correct it

[AUTO REPLAY]
It helps replay your operation you just pressed
You pressed [4x5=] and you will see 20, then you press the [AUTO REPLAY] and you will see 5x, 3, 15 in the calculator screen

[CHECK]
It helps replay your operation step by step
You pressed [4x5=] and you will see 20, then you press the [CHECK] 3 times, you will see 4x,5,20 separately

[Constant Calculations]
To Calculate[5 * 5 * 5 * 5 + 2 + 2 = 629]. You Press[5 * === + 2 == ].
You will see 629