This Page shows Arithmetic Operators

Arithmetic Operators can be used in variable

Addtion "+" is used to output the sum of the variable

For example, can create a variable $add, making it equal 1+1, which would make the variable 2.
2
The rest of the example will be subtract, multiply, division, and modulus in sequential order.
Subtraction uses -
0
Multiply uses *
4
Divide uses /
1
Modulus uses %
2