| English | Russian |
| basic mathematical operation | элементарное математическое действие (addition, subtraction, multiplication or division Alex_Odeychuk) |
| basic operation | основная операция (главная) |
| basic operation | главная операция (ssn) |
| basic operations for linear algebra | основные операции линейной алгебры (Alex_Odeychuk) |
| the addition is taken as a basic operation | принять за |