Updated: 05/01/2023 by Computer Hope
Ctrl+Shift+- or Ctrl, Shift, minus keyboard shortcut

The Ctrl+Shift+- or Ctrl+Shift+_ keyboard shortcut is used to decrease the resolution on a Chromebook.


Although the hyphen key creates an underscore when Shift is pressed, the hyphen is used when describing this shortcut.

How to use the Ctrl+Shift+-

To use this keyboard shortcut, press and hold either Ctrl and Shift key, and while continuing to hold them, press the - key.

Ctrl+Shift+- on a Chromebook

Pressing Ctrl+Shift+- on a Chromebook decreases the resolution.


Use Ctrl+Shift++ to increase the resolution. The shortcut Ctrl+Shift+0 resets to the default resolution.

Ctrl+Shift+_ in Microsoft Excel

Pressing Ctrl+Shift+_ in Microsoft Excel to remove borders around selected cell.

Below are links to related keyboard shortcuts and individual key pages.

Hyphen, Keyboard shortcut, Keyboard terms, Underscore