Q: Templates & Fractional CRs

[jrients]

What is the correct math when applying a template worth +X challenge rating to a creature worth less than a whole CR?

 

[Pinotage]

Not sure if this is the 'correct' way, but I simply use the template CR adjustment if the base creature has a CR less than 1. In other words, a CR 1/2 creature getting a +3 CR template would be CR 3. CR 3.5, technically, but you generally round down in D&D so that makes it CR 3.

Pinotage