In Mathematics or better in Arithmetic, are the different practices or exercises that can be performed with numbers or sets. The basic or elementary are addition, subtraction, multiplication and division. In Medicine are all surgical practices that can be done to a patient. Surgeries. In the Military field are all strategic activities or maneuvers that advance to achieve a goal. In banking and financial activity are all capital movements executed by customers and the same bank. Exercises, movements, surgeries, maneuvers, combats, deals, business, actions, executions.