Classification Rule builder - Arithemetic and Logical Rules

I just wanted to create one classification as per  range of number getting captured. For example

10-20$ Small Orders

20-80$ Medium Orders

80 + Large Orders

It is possible to do that by creating regex for all the numbers falling in this range. However it will become super easy if have some sort of numeric comparision feature in Classification Rule builder.

Also if we can do simple mathematical calucations on received numbers like multiply by some number etc it ll help in creating calculated dimensions.