extrasheet
nounUK /ˈɛkstrəʃiːt/
US /ˈɛkstrəʃiːt/
An extrasheet is an extra piece of paper you can add to a book or notebook.
The teacher gave me an extrasheet to write my story on.
OTHER MEANINGS
2. A bonus page included with a printed document.
The manual came with an extrasheet showing the wiring diagram.
3. A spare sheet of paper kept for later use.
Keep an extrasheet in your folder in case you run out.
4. An additional data sheet attached to a report.
The scientist stapled an extrasheet of results to the report.