Math in roll templates?

Greetings! Just a quick question, is it possible to use simple math in roll templates? I'm trying to figure out the syntax (if even possible).  {{#rollTotal() throw 2}} <tr><td><span>Outcome: </span>(10% HP Loss)<br> <br><span>HP Loss: </span> {{round((@{HP_temp_loss}) / 10)}}</td></tr> {{/rollTotal() throw 2}} I copied my version. In this case the roll template gives the correct text if the 2d6 throws a '2' but I'm not sure on the 2nd part where I try to apply math to a variable since this math changes depending on the outcome of the 2d6. 

No. As far as I am aware you have to do it outside. &{template:skillRoll} {{name=@{Name}}} {{skillvalue=@{artScore}}} {{fumble=[[ceil(95+(@{artScore}+?{Mods|0})/20))]]}} {{crit=[[ceil((@{artScore}+?{Mods|0})/20)+1]]}} {{special=[[ceil((@{artScore}+?{Mods|0})/5)+1]]}}

While you can't do math in the roll template per se , you can instead do it in inline rolls that you set for your variables. So, instead of this ... {{#rollTotal() throw 2}} <tr><td><span>Outcome: </span>(10% HP Loss)<br> <br><span>HP Loss: </span> {{round((@{HP_temp_loss}) / 10)}}</td></tr> {{/rollTotal() throw 2}} ... You could have this: ... {{#rollTotal() throw 2}} <tr><td><span>Outcome: </span>(10% HP Loss)<br> <br><span>HP Loss: </span> {{roundHP}}</td></tr> {{/rollTotal() throw 2}} ... and the call for said template would look something like: &{template:template_name}{{throw=[[2d6]]}}{{roundHP=[[round(@{HP_temp_loss}/10)]]}}

Thanks. I completely forgot about doing it outside the template. Though I do see it right that I have to attach the call to every button that I'm using for the throw, right? As that would mean adding 2d6, meaning 11 in my specific case, different cases of variables to every instance of that button instead of having it all in one place. 

Depends on what you need to do for each case. Not knowing the particular rules, I can't really help, but, being a math guy, I know that there are many cases where you can use tricks to cut back on a bit of typing, or at the very least ease the computations necessary. If you are able to give or link to a description of the rules involved, I might be able to help.