It's probably copyright violation to copy their exercise sets (depends on the license and where they got them). There are existing maths quiz grading systems t

It's probably copyright violation to copy their exercise sets (depends on the license and where they got them). There are existing maths quiz grading systems that could be used for similar purposes (based on your description; I haven't done that Udacity course), and I'd recommend STACK [1], a Moodle [2] plugin. Both are open source. [1] https://stack-assessment.org/ https://stack-assessment.org/ [2] https://moodle.org/ https://moodle.org/