{i} sign that shows the following quantity is to be added; sign that shows a positive quantity, +
A plus sign is the sign + which is put between two numbers in order to show that the second number is being added to the first. It can also be put before a number to show that the number is greater than zero , and after a number to indicate a number that is more than a minimum number or amount. plus the sign (+), showing that you should add two or more numbers together, or that a number is more than zero