09-08-2020 11:30 AM
09-08-2020 11:52 PMSolution
Microsoft Forms doesn't allow for that type of formatting unfortunately.
I'd suggest using the subtitle to show an example of the desired format to help responders fill it in right.
If you were using Power Automate to capture the results, you could also manipulate the number into a the desired format using an Expression.
Hope that helps with some ideas.