The ones who are crazy enough to think they can change the world are the ones who do.- Steve Jobs
Generally, you too an operator because you operate most of the things in your day-to-day life. For example you may play music, you may drive a car and many more.
Assume variable a = 2 and b = 4, these values substituted to the expression, a + (5 * b) = 22. The expression can be defined as follow, a and b are variables, 5 is a constant and 22 is a result value.
C provides 4 different kind of operators to perform different kinds of operations on operands (data items).
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