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Python Operators · Exercises
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Python Operators Exercises

4 exercises that build on the Python Operators lesson, from easy to hard. Each one is checked in your browser when you press Check. Stuck? Use the hint before peeking at the solution.

What this lesson covers: Operators are symbols such as +, == and and that combine values into a new value — a number from arithmetic, or True/False from a comparison or a logical test. By the end you can do arithmetic including //, % and **, predict the order Python works things out in, compare values, combine conditions with and/or/not, and update variables with +=. You will practise: Rectangle calculator; Predict the results; Fix the time converter; Is it a leap year?.

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1. Rectangle calculator

Write code Easy

Using the given width and height, create three variables:

  • area — width times height,
  • perimeter — the distance all the way round (2 × width + 2 × height),
  • is_square — True if width and height are equal, otherwise False. Use a comparison operator rather than typing True or False.

Then print all three.

Your code 
width = 7
height = 4

# create area, perimeter and is_square




  
  

  
  
  



    
  
    

  

    
2. Predict the results

    Predict the output
    Medium
    
  

  
Read the code and type exactly what it prints. Think about the type each operator returns and the order Python works things out in.

  
    

  

    Read this code
    

      
      
    

  

  
print(10 / 4)
print(10 // 4, 10 % 4)
print(2 + 3 * 2 ** 2)
print(not 5 > 3 or 1 == 1.0)

  
  
  

  

    
      
      
      
      
    
    
  

  




  
  

  
  
  



    

  
    

  

    
3. Fix the time converter

    Fix the bug
    Medium
    
  

  
This code should turn 135 minutes into 2 h 15 min, but it prints 2.25 h 0.0 min. Fix it so that hours and minutes are whole numbers (ints).

  
    

  

    Your code
    

      
      
      
      
    

  

  
total_minutes = 135
hours = total_minutes / 60
minutes = total_minutes - hours * 60
print(hours, "h", minutes, "min")

  
  
  
  

    
      
      
      
      
    
    
  

  




  
  

  
  
  



    
  
    

  

    
4. Is it a leap year?

    Write code
    Hard
    
  

  
A year is a leap year if it is divisible by 4 — except years divisible by 100, which are not — unless they are also divisible by 400. So 2024 and 2000 are leap years, but 1900 and 2023 are not.


Write one expression using %, == / !=, and and or that stores True or False in is_leap for the given year, then print it. Before pressing Check, try changing year to 2000, 2023 and 2024 to make sure your expression works for every case.

  
    

  

    Your code
    

      
      
      
      
    

  

  
year = 1900

# is_leap = ...

print(year, "is a leap year:", is_leap)

  
  
  
  

    
      
      
      
      
    
    
  

  




  
  

  
  
  



    
  
  

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