UF has been using the ALEKS placement exam for placement in algebra, precalculus, calculus and general chemistry. You only need to take this one exam for placement.
Note, if you already have the incoming credit for the class, you don’t have to take the placement test. However, if you’re dropping calculus, you likely will not having any incoming credit for calculus.
https://student.ufl.edu/aleksinfo.html
EDIT: You should take the test before Preview.