1. When referring to a keyboard or symbol, the plus ( + ) is a symbol found on the same key as the equal sign that has a horizontal and vertical line crossing each other. In the picture to the right is an example of the plus symbol.
Where is the plus key on the keyboard?
Below is an overview of a computer keyboard with the plus key highlighted in blue on the main keyboard as well as the numeric keypad.
How to create the + symbol
Creating the + symbol on a U.S. keyboard
Tip: The plus is easier to use on the numeric keypad with math formulas.
Creating the + symbol on a smartphone or tablet
What is a plus used for on a computer?
The plus key is most often used in programming and mathematics to add two or more numbers or as a programming operator.
Plus in a math formula
In a math formula a plus is used to represent an addition. For example, in the below formula you can see that 2 <plus> 1 is equal to 3.
2 + 1 = 3
A plus in a URL
Other places with the plus symbol
A plus symbol or a horizontal line crossing a vertical line is also a symbol used as an indication to increase, add, move down, or zoom in on software programs and hardware devices.
2. Plus is also an abbreviated version of Google+.