Typing Square Roots
Typing 
To get a square root sign, press the
Control key and the
2 key at the same time.
Type inside the placeholder (which is already selected).
Type

.
Press the
Control key and the
Space bar at the same time to get out of the square root.
Typing 
To get a square root sign, press the
Control key and the
2 key at the same time.
Type inside the placeholder (which is already selected).
Type

.
Press the
Control key and the
Space bar at the same time to get out of the square root.
Type the second square root in the same way as the first.
Press
Ctrl+@, type

, and press
Ctrl+Space.
Typing 
To get a square root sign, press the
Control key and the
2 key at the same time.
Type inside the placeholder (which is already selected).
Type

.
Press the
Control key and the
Space bar at the same time to get out of the square root.
Another Way of Typing 
Start by typing the expression that will be inside the square root.
Type

.
Select the expression. (You can select by dragging, by pressing
Ctrl+. repeatedly, or by clicking the expression repeatedly.)
Select

.
Press the
Control key and the
@ key at the same time to put a square root around the selection.
Get out of the square root by pressing the
Control key and the
Space bar at the same time.