Go Arithmetic Operators
Addition
To add two numbers, put the plus symbol (+) between them.
Subtraction
To subtract two numbers, put the dash symbol (-) between them.
Multiplication
To multiply two numbers, put an asterisk (*) between them.
Division
To divide two numbers, put a slash (/) between them.
Getting the Remainder
To get the remainder when we divide two numbers, put a percent sign (%) between them. In programming lingo, this is called the modulus operator.
Increment
To add one to a number, put two plus signs (++) after it. For example, n++.
Decrement
To subtract one from a number, put two dashes (--) after it. For example, n--.