Multiple parameters in Python - Mini Project: Build & Apply

Using Multiple Parameters in Functions

📖 Scenario: Imagine you are creating a simple calculator that can add two numbers. You want to write a function that takes two numbers as input and returns their sum.

🎯 Goal: Build a function called add_numbers that takes two parameters and returns their sum. Then call this function with specific numbers and print the result.

📋 What You'll Learn

Create a function named add_numbers with two parameters: num1 and num2

Inside the function, return the sum of num1 and num2

Call the function add_numbers with the numbers 5 and 7

Print the result of the function call

💡 Why This Matters

🌍 Real World

Functions with multiple parameters are used everywhere, like calculating totals, processing user input, or controlling devices.

💼 Career

Understanding how to write and use functions with multiple parameters is a key skill for any programming job, enabling you to write reusable and clear code.

1

Define the function with two parameters

Write a function called add_numbers that takes two parameters named num1 and num2. Inside the function, return the sum of num1 and num2.

Python

# Define the function add_numbers with parameters num1 and num2
# Your code here

Need a hint?

Use the def keyword to create a function. The parameters go inside the parentheses.

2

Call the function with two numbers

Call the function add_numbers with the numbers 5 and 7 and store the result in a variable called result.

Python

def add_numbers(num1, num2):
    return num1 + num2

# Call add_numbers with 5 and 7 and store in result
# Your code here

Need a hint?

Use the function name followed by parentheses with the two numbers inside.

3

Print the result

Write a print statement to display the value stored in the variable result.

Python

def add_numbers(num1, num2):
    return num1 + num2

result = add_numbers(5, 7)

# Print the result
# Your code here

Need a hint?

Use the print function with the variable name inside the parentheses.

4

Test with different numbers

Call the function add_numbers again with the numbers 10 and 20 and print the result directly without storing it in a variable.

Python

def add_numbers(num1, num2):
    return num1 + num2

result = add_numbers(5, 7)
print(result)

# Call add_numbers with 10 and 20 and print the result directly
# Your code here

Need a hint?

Call the function inside the print function directly.