*Use the number keypad (1, 2, 3, 4, 5, 6, 7, 8, 9, 0, .) to dial in the number you want *Use the math method buttons (Addition, Subtraction, Multiplication, Division, Modding) to select the math method * use the calculation modifiers (sqrt, sin, cos, tan, log, 10^, ln, abs, asin, acos, atan, e^, floor, ceiling, round) to modify the number *Use the C button to reset the shown number. *Use the CA button to clear all
