Python Basics — Day 3(Operators in Python)

Day 3 — Operators in Python

01. Arithmetic Operators

Operator Meaning Example Result + Addition 5 + 2 7 - Subtraction 5 - 2 3 * Multiplication 5 * 2 10 / Division (float) 5 / 2 2.5 // Floor division 5 // 2 2 % Modulus (remainder) 5 % 2 1 ** Exponentiation 2 ** 3 8

a = 7
b = 3
print(a + b)   # 10
print(a / b)   # 2.333...
print(a // b)  # 2
print(a % b)   # 1
print(a ** b)  # 343

02. Comparison Operators

Operator Meaning Example Result == Equal to 5 == 5 True != Not equal to 5 != 3 True > Greater than 5 > 3 True < Less than 5 < 3 False >= Greater or equal 5 >= 5 True <= Less or equal 3 <= 5 True

x = 10
y = 20
print(x == y)  # False
print(x != y)  # True
print(x < y)   # True

03. Logical Operators

Operator Meaning Example Result and Both must be True True and False False or At least one True True or False True not Negation not True False

age = 25
is_student = False

print(age > 18 and is_student)  # False (one is False)
print(age > 18 or is_student)   # True (one is True)
print(not is_student)           # True (False → True)

04. Operator Precedence

Just like in math, multiplication/division has higher priority than addition/subtraction.
Parentheses ( ) override the order.

print(2 + 3 * 4)      # 14 (multiplication first)
print((2 + 3) * 4)    # 20 (parentheses first)

05. Practice Examples

Example 1: Arithmetic

x = 15
y = 4
print("Quotient:", x // y)
print("Remainder:", x % y)
print("Power:", x ** y)

Example 2: Comparison

temperature = 30
print("Is it hot?", temperature > 25)
print("Is it cold?", temperature < 10)

📝 Example 3: Logical

score = 85
is_pass = score >= 60
is_excellent = score >= 90

print("Pass?", is_pass)
print("Excellent?", is_excellent)
print("Pass and Excellent?", is_pass and is_excellent)