👉 Plusses, also known as plus signs or a plus button on most keyboards and devices, are used to indicate that there is an addition or sum in a mathematical expression. They are typically represented by the symbol "+" (plus sign). For example: ``` 7 + 5 = 12 ``` In this case, "7" represents the number being added, and "+ 5" indicates that the result of adding 5 to 7 is 12.