How to hide or remove pages from a workbook?
The option of hiding particular pages in a workbook is not here any more, but I cannot figure it out how to remove them from the workbook either. What should I do if I don't want the students to see all the pages in the workbook?
📚 New Feature: Share worksheets & get automatic grading via Google Classroom 🎓

If you go to the worksheet you want to hide, in the top right corner of it you'll find the Menu where there are the options 'Hide' and 'Delete'.
@Ruta is correct, for each workbook page you have the ability to click in the top right corner to hide and edit pages. Thanks @Ruta!