Addition ($a + $b): 19
Subtraction ($a - $b): 11
Multiplication ($a * $b): 60
Division ($a / $b): 3.75
Modulus ($a % $b): 3
The addition operator (+) adds two numbers together and returns their sum.
The subtraction operator (-) subtracts the second number from the first one and returns the difference.
The multiplication operator (*) multiplies two numbers and returns the product.
The division operator (/) divides the first number by the second and returns the quotient.
The modulus operator (%) returns the remainder after division of one number by another, useful for checking divisibility.