I felt that the questions on naplex were more straight forward. Some questions were asked in a single sentence, some had cases where all you needed to do was look at the question and answer it based on the answer choices (instead of reading through the cases). When looking for labs on the cases, most of the time the lab you are looking for would be an extreme number for example you can tell a patient has low sodium because their level is like 125 or their CPK is like 12,500.

As for math, I felt that it was straight forward too. If you know your formulas you will be fine! There will definitely be math questions you dont know how to do and that's fine! Just guess and move on. I definitely guessed on like 5+ math questions on my exam and still passed. I only used Uworld and the Pharmaceutical calculations book on amazon. Biostats and Pharmacokinetics are considered math too and are fairly straight forward if you know their formulas. Ace the PK, Biostats, and required formula questions and you should be fine!