Python Arithmetic Operations Worksheet (Free PDF) – Practice Exercises with Answers

In this blog, we will explore arithmetic operations in Python, covering addition, subtraction, multiplication, division, floor division, modulus, and exponentiation. Whether you’re a beginner or looking to refresh your Python math skills, this guide will help you understand how to perform calculations efficiently.

1. Basic Arithmetic Operations in Python

Python supports all fundamental arithmetic operations:

Key Note:

• Division (/) always returns a float, even if the result is a whole number.
• If you mix integers and floats, the result will be a float.

print(4 + 3.0)  # Output: 7.0  
print(5 - 2.5)  # Output: 2.5  
print(3 * 2.0)  # Output: 6.0  

2. Floor Division (//) – Getting Integer Results

If you want division to return an integer (rounding down), use floor division (//).

print(5 // 2)    # Output: 2 (not 2.5)  
print(19 // 4)   # Output: 4 (not 4.75)  

3. Modulus Operator (%) – Finding Remainders

The modulus operator (%) returns the remainder after division.

print(19 % 4)    # Output: 3 (since 4*4=16, remainder=3)  
print(5 % 2)     # Output: 1 

Practical Use Case:

• Checking if a number is even or odd (num % 2 == 0 means even).

4. Exponentiation () – Power Calculations**

To compute powers, use the ** operator.

print(2 ** 3)    # Output: 8 (2×2×2)  
print(5 ** 2)    # Output: 25 (5 squared) 

5. Arithmetic Operations with Strings

Python allows some arithmetic operations on strings, but with restrictions:

String Concatenation (+)

print("Hello" + "World")  # Output: HelloWorld  
print("Hi " + "Python")   # Output: Hi Python  

String Repetition (*)

print("Hello" * 3)  # Output: HelloHelloHello

Invalid Operations

• Subtraction (-), Division (/), and Exponentiation (**) do not work with strings.
• Mixing strings with numbers in + operation causes an error.

# print("Hello" - "World") ❌ Error  
# print("Hello" / 2)      ❌ Error  
# print(5 + "Hello")      ❌ Error  

6. Operator Precedence (PEMDAS Rule)

Python follows the PEMDAS rule for arithmetic operations:

1. Parentheses ()
2. Exponents **
3. Multiplication * & Division / (left to right)
4. Addition + & Subtraction - (left to right)

Example:

print(4 * (4 + 3) // 2)  # Output: 14 

7. Common Errors to Avoid

1. Division by Zero → print(5 / 0) ❌ (Crashes with ZeroDivisionError)
2. Mixing incompatible types → print("Hello" + 5) ❌ (Use str(5) to convert)

Conclusion

Python’s arithmetic operations are straightforward but powerful. Remember:

• Use / for normal division (returns float).
• Use // for integer division (floor division).
• % gives remainders (useful for even/odd checks).
• ** calculates exponents.
• Strings only support + (concatenation) and * (repetition).

📌 Pro Tip: Always use parentheses () to clarify complex calculations!

Watch the Full Video Tutorial

For a detailed explanation with live examples, check out our Python Arithmetic Operations Video Tutorial.