Today I would like to highlight some points about OPERATOR.
Operators specify the type of calculation that you want to
perform on the elements of a formula, like addition, subtraction,
multiplication or division. There is a default order in which calculations
occur, but you can change this order by using parentheses.
Arithmetic operators
To perform basic mathematical operations such as addition,
subtraction, or multiplication; combine numbers; and produce numeric results,
use the following arithmetic operators.
Comparison operators
You can compare two values with the following operators.
When two values are compared by using these operators, the result is a logical
value either TRUE or FALSE.
Operator precedence
If you combine several operators in a single formula, Excel
performs the operations in the order shown in the following table. If a formula
contains operators with the same precedence — for example, if a formula
contains both a multiplication and division operator — Excel evaluates the
operators from left to right.
In a simpler language “How a formula decides which operator’s
job to be processed first”.