Calculator, Splaks 3 Pack Standard Functional Desktop Calculator Solar and AA Battery Dual Power Electronic Calculator with 12-Digit Large Display (2 Basic Black&1 Updated Silver)

[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