AWK supports almost all basic arithmetic operators for building arithmetic expressions. These operators are binary operators; that is, they operate on two variables and are very similar to C language expressions. All these arithmetic operators follow the normal precedence rule. AWK supports the following arithmetic operators.

**Addition (p + q)**:

This is represented by a plus (`+`) symbol, which adds two or more numbers. These numbers could be variables or constants. For example, we can add two numbers after assigning them to two variables as follows:

$ awk 'BEGIN{ p = 20; q = 30; print "( p + q ) = ",( p + q )}'

The output on execution of this code is as follows:

( p + q ) = 50

Now, we will use the ...