Do you know the calculator of optimal adder method for an accounting calculation? (with the calculation method change function) Try it on the iPhone and iPad you always carry around. Feature - This can switch an adder calculator and ordinary calculator - Simple setting of the design of the calculator- Sound effects- Input log and copy- Input log editing + recalculation function- Voice reading of the input log (for iOS7)- 14 Number of significant digits- Always display Grand Total- Always display Memory- BackSpace functionSimple design that is emphasis in the adder calculation functionHow to use an adder calculator (1010)+(55)-(65)=9510 [] 10 [+=] 5 [] 5 [+=] 6 [] 5 [-] [GT] 1010Add55Add65PullVer5.5.3 later% Calculation example : 500 + (500 12%) = 560500 [+=] 12 [%] [+=](Old : 500 [+=] [] 12 [%] [+=])How to use an ordinary calculator (1010)+(55)-(65)=9510 [] 10 [=][M+] 5 [] 5 [=][M+] 6 [] 5 [=] [M-][MR]Added to the Grand Total by = The continuous input will be 10 10 + 5 5 - 6 5 = 2595Ver5.5.3 later% Calculation example : 500 + (500 12%) = 560500 [+] 12 [%] [=](Old : 500 [+] [] 12 [%] [=])