Do you know that how to add number row to google keyboard. Add this can really save you time in typing as it will reduce the time for switching the keyboard of your smartphone to numbers and alphabets.
For this in your device go to Settings app > Language & Input > Google Keyboard. Then you will need go to Appearance & layouts > Custom input styles. After this using the plus icon Choose English (US) as the language and PC as the layout then click Add.
You can now launch the keyboard from an app. Hold down on the space bar to switch to your new creation, which will be labeled English (US) (PC)