* '''Sum (+)''': Sum two operands. Represented by the sum (+) character. The expression syntax is ''<operand/expression> + <operand/expression>''. '''Examples''': "Taxes" + "Commissions";

* '''Subtraction (-)''': Subtract two operands. Represented by the subtract or hyphen (-) character. The expression syntax is ''<operand/expression> - <operand/expression>''. '''Examples''': "Gross Sale" - "Taxes";

* '''Multiplication (*)''': Multiplicate two operands. Represented by the multiplication or star (*) character. The expression syntax is ''<operand/expression> * <operand/expression>''. '''Examples''': "Amount" * "Unit Price"; * '''Division(/)''': Divides two operands. Represented by the divide or bar (/) character. The expression syntax is ''<operand/expression> / <operand/expression>''. Examples: "Total Value" / "Amount".