How do you submit an assignment on Google Classroom app?

Turn in a quiz assignment
  1. Tap Classroom .
  2. Tap the class Classwork. …
  3. Tap the quiz file and answer the questions.
  4. In the quiz, tap Submit.
  5. In Classroom, on the Your work card, tap Expand .
  6. (Optional) To add a private comment to your teacher, tap Add private comment enter your comment tap Post .
  7. Tap Mark as done and confirm.

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Why is there no turn in button on my Google Classroom assignment?

If the teacher has assigned a collaborative Google file (student can edit the file), or other outside types of assignment, The student will see a Mark As Done button instead of Turn In. This option will only appear in Google Classroom, not in the file itself.