I am trying to deal with JavaScript values such as 23.45, but I want to be able to do mathematical operations on these values (addition, subtraction, multiplication
23.45
There is Math
The Math object is build into the JavaScript spec so every browser has it natively.
As for data types, JavaScript has Number. That's it. We have no other number data type. The best think to do is to try and work with Integers.
Number