[#6501368] Create a number-only evaluation that doesn't round

So that we can do the rounding explicitly in the equation builder code
and expose the result to content about what is actually being compared
Realized I wanted something *even simpler*

The idea behind this is that the simplificaton would be done elsewhere
outside of the comparison, and this would just be comparing numbers.
Merge pull request #3 from thinkthroughmath/cln/resulting_expression_equality

[#6501368] Create a number-only evaluation that doesn't round