Most of the time, the easiest way to take a screenshot is by using the power and volume buttons.
1. Go to the screen you want to screenshot.
2. Briefly press the Volume Down and Power buttons simultaneously. Release the buttons quickly — if you hold them too long, the Note 10 will display options to shut down.
3. You’ll see the screen flash slightly and the screenshot toolstrip will appear at the bottom of the screen. You can use the tools to edit the image or, if you do nothing, the screenshot will be saved automatically to the Gallery app.
You can take a screenshot by pressing the Volume Down and Power buttons.