Using Template format to create a working expression
From semantic-mediawiki.org
Fragment of a discussion from Archive talk:Template format
> #expr just prints out as text, it does not execute
I'm guessing (the description isn't clear about this) that you are using the template to generate an output similar to Intro -> {{#expr: Query -> 0 + 14 + 5 + 4 + 3 + 3 Outro -> }} which will be a text component and not a parser expression (even though it appears as a normal expression).
> to execute and give me a total number as the printou while using the template format?
Demo:Template_with_tabular_output_and_math_functions might help.