Summary  
This chapter covers how to use printing for output, add comments for documentation, and perform simple arithmetic operations in code.

General domain of usage  
Grocery store inventory and pricing management.

**Congratulations** on completing the first section of our **Python course**! 

Let's take a moment to review the **key concepts and skills** you've mastered:


## Print Statements

You've learned how to use `print()` to display text and numbers on the screen. This is **fundamental for any Python program** as it allows you to output results and messages, making your code interactive.

Recall the example from before:


## Comments

You've practiced **using comments in your code**, which are lines that Python ignores. 

Comments are written with a `#` at the beginning of the line and are crucial for **documenting what your code is doing**. This makes your code easier to understand and maintain for you and others who might read your code later.

Here is a quick reminder example:


print("Welcome to Aisle 3: Snacks, Chips, and Sodas")
print("Potato Chips")
#print("Milk")

## Simple Math Operations

You've applied **basic arithmetic operations** — addition (`+`), subtraction (`-`), multiplication (`*`), and division (`/`). 

These operations are **essential for performing calculations**, which you practiced in the context of managing inventory and prices in a grocery store.

Run the following multiplication example:


# Multiplication: 
# Calculating the cost of a 3.5-pound bundle of bananas when bananas cost $1.20 per pound.
print(3.5 * 1.20)

What is the purpose of the `print()` function in Python?

In Python, how do you write a comment that the interpreter will ignore?

What is the correct operator to use for division in Python?

Python is a high-level, interpreted, general-purpose programming
language. Distinguished from languages such as HTML, CSS, and JavaScript, which are mainly
utilized in web development, Python boasts versatility across multiple domains, including
software development, data science, and back-end development. This course will guide you
through Python's fundamental concepts, equipping you with the skills to create your own
functions by the conclusion of the program.

In this section, you will explore the fundamentals of Python, get acquainted
with your workspace, perform simple math operations, and display your findings.

In this section, you'll discover how to save items such as numbers and text
in computer memory and retrieve them by name. Additionally, you'll gain an introduction to text
manipulation in Python.

In this section, you'll explore the boolean data type and learn how it is used
to develop programs that react to certain conditions.

In this section, you will continue learning about data types and discover
how to organize various attributes in a single variable using lists, tuples, and dictionaries.

In this section, you'll learn how to create loops in Python — an essential skill
for iterating through lists, tuples, and dictionaries.

To conclude this introductory course, you will explore some built-in
functions and then begin to develop your own!

Recap

Print Statements

Comments

Simple Math Operations

1. What is the purpose of the `print()` function in Python?

2. In Python, how do you write a comment that the interpreter will ignore?

3. What is the correct operator to use for division in Python?