Arithmetic operators are used to combine numeric expressions arithmetically to form other numeric expressions. Valid arithmetic operators are (in descending order of precedence):

Unary operators group from right to left and binary operators group from left to right. You can use the unary minus (-) to reverse the algebraic sign of a value.

To force a desired order of evaluation, use parentheses; for example:

is an expression in which the parentheses force the addition operator (+) to take precedence over the multiplication operator (*).