How do I change the answer shown for a numerical question

[jackcm]

I take it automatic regrading is impossible, but I'd like the feedback to show the correct answer.

Thanks

[Renee_Carney]

 @jackcm  

I'm not fully confident I understand what you're seeking, but let me see if a couple guides can help.

Regrade:
New QuizzesHow do I regrade an assessment question in New Quizzes?

Classic QuizzesWhat options can I use to regrade a quiz in a course? 

Feedback:

New Quizzes

   How do I add feedback to an assessment question in New Quizzes?  

   Manage Feedback Settings How do I manage settings for an assessment in New Quizzes?  

Classic Quizzes

   Mange Feedback Settings https://community.canvaslms.com/docs/DOC-26470-what-options-can-i-set-in-a-quiz