Operators & Decision Making

Operators and Decision Making in Python help us perform operations and make decisions in a program.

They are very important concepts in Python programming for beginners.

What are Operators?

Operators in Python are symbols used to perform operations on values.

They help in:

• Calculations (Arithmetic Operators)
• Comparisons (Comparison Operators)
• Logic building (Logical Operators)

Types of Operators

1. Arithmetic Operators

Used to perform calculations:

• + → Addition
• - → Subtraction
• * → Multiplication
• / → Division

2. Comparison Operators(Relational)

Used to compare values:

• == → Equal
• > → Greater than
• < → Less than

3. Logical Operators

Used to combine conditions:

• and → Both conditions must be True
• or → At least one condition is True
• not → Reverses the result

What is Decision Making?

Decision Making in Python means choosing an action based on a condition.

It is done using:

• if
• else
• elif

It helps programs:

• Decide what to do next
• Work based on True or False conditions
  
  

Example Program (Operators + Decision Making)

marks = 75

if marks >= 50:
    print("Pass")
else:
    print("Fail")

Output:

Pass

Explanation

• marks >= 50 → Comparison operator checks condition
• if → makes a decision based on condition
• Output depends on True/False result 

Common Beginner Mistakes

• Using = instead of ==
• Missing colon (:) after if
• Wrong indentation
• Incorrect conditions

➤ Summary

• Operators perform calculations and comparisons
• Decision Making uses conditions
• if, else, elif control program flow
• Works based on True or False
• Used in real-world programs

➤ Tips 

• Practice simple if conditions
• Use correct operators
• Understand True/False logic
• Try real-life examples