I leave a programming example in PHP. It works too simple, you just have to configure the two variables, $ FirstValue and $ SecondValue, currently they are at 10 and 30.

php
# Comments.
# Simple PHP programming example
# Doing simple calculations between predefined variables
# For ExampleDe. Com
$ FirstValue = 10; // Comment: Edit the number to change the first value
$ SecondValue = 30; // Comment: Edit the number to change the second value
// Calculation section
$ sum = $ FirstValue + $ SecondValue; // We add
$ subtraction = $ FirstValue - $ SecondValue; // We subtract
$ multiplication = $ FirstValue * $ SecondValue; // We multiply
$ division = $ FirstValue / $ SecondValue; // We divide
// Next we show the accounts in a textual format
echo "

Textual Format

This example in PHP would show the following

The sum Come in 10 Y 30 It is 40
The subtraction Come in 10 Y 30 It is -20
The multiplication Come in 10 Y 30 It is 300
The division Come in 10 Y 30 It is 0.333333333333
10 + 30 = 40
10 - 30 = -20
10 * 30 = 300
10 / 30 =0.333333333333