Basic Arithmetic Operations

+ Addition: 5 + 3 = 8
- Subtraction: 10 - 4 = 6
* Multiplication: 6 * 7 = 42
/ Division: 20 / 4 = 5.0
// Floor Division: 20 // 3 = 6
% Modulo (Remainder): 20 % 3 = 2
** Exponent: 2 ** 3 = 8

x = 10
y = 3
print(x + y)  # 13
print(x * y)  # 30

Order of Operations (PEMDAS)
Python follows math rules:
result = 10 + 5 * 2  # = 20 (multiply first!)

name = "John"
greeting = "Hello, " + name  # Concatenation

# Calculate total price with tax
item_price = 50
tax_rate = 0.08
total = item_price + (item_price * tax_rate)  # 54.0