Respondus 4 supports the creating or editing of "calculated" or "arithmetic" questions for Blackboard Learn 9.1, D2L Brightspace, and Moodle. Respondus can also retrieve calculated questions the same LMSs. Once downloaded, calculated questions can be edited, moved, copied, deleted, or resubmitted to the LMS.
 
The Respondus Help and the User Guide has further details on the calculated/algorithmic question type.