Should I use the Calculated or Calculated simple question type?
The Calculated simple question is a version of the Calculated question without the option to use shared datasets.*
You may find it easier to set up.**
Following are some hints for setting up both types of question:
*A dataset is a set of groups of numbers e.g a set of (width,breadth) pairs. Each question, or set of questions, in a quiz attempt (depending on whether the data is synchronized between the questions), is assigned a random set from the dataset. In other words, a shared dataset has two distinct uses: It saves creating a new dataset for each question and, when necessary, it ensures that different questions within one quiz attempt use the the same numbers
** Somewhat annoyingly, it does not have an option to delete datasets