Addition (+): 15
Subtraction (-): 5
Multiplication (*): 50
Division (/): 2
Modulus (%): 0
The addition operator sums two numbers, the subtraction operator subtracts one number from the other, and the multiplication operator multiplies two numbers. Likewise, the division operator divides them. The modulus operator returns the remainder of a division operation. These arithmetic operators allow PHP to perform mathematical calculations.