Summary  
This chapter explains how numeric literals—including integers, floating-point numbers, and negatives—are represented and manipulated using arithmetic operators ( +, -, *, /, ** ) with proper operator precedence, and how to print the results.  

General domain of usage  
Mathematical calculations

# Summary

- **Textual data** is always enclosed in single or double quotation marks.  
  For example: `'Hello World'` or `"Hello World"` — both represent valid textual data;

- There are two different types of **numbers in JavaScript**:
  - **Integers**;
  - **Floating-point numbers**;

- **Floating-point numbers** (also known as **Floats**) are numerical values that have a decimal part.  
  Examples: `1.234`, `24.56`, `3.1415`, etc;

- **Negative numbers** can be expressed by adding a minus (`-`) sign before the number. 
  Examples: `-27`, `-3.14`, `-123`, etc;

- **Arithmetic operations** can be performed on numbers using the following operators:  
  `+`, `-`, `*`, `/`, and `**`;

- The order of arithmetic operations follows the basic rule of arithmetic (**BODMAS** or **PEMDAS** rules).


// Integer
console.log('Integer:', 42);

// Floating-Point Number
console.log('Floating-Point:', 3.14);

// Negative Number
console.log('Negative:', -27);

// Arithmetic Operations
console.log('Sum:', 42 + 3.14);

console.log('Product:', 42 * -27);

Which of the following is the correct way to represent textual data?

Which of the following is **NOT** a valid number type?

Which of the following represents a Floating-Point Number?

Which of the following represents a negative number?

Dive into the world of the most popular language for front-end development – JavaScript. JavaScript is a language built into almost every browser and can be used for a wide variety of tasks. Learn the basic functionality and prepare yourself for the challenges and more advanced programming techniques.

An introduction to JavaScript, covering the basic syntax of the language along with key terms and concepts that form the foundation for learning advanced features. The section includes hands-on tasks designed to help practice these concepts and make the content easy to remember without effort.

Dealing with Numbers

Summary

1. Which of the following is the correct way to represent textual data?

2. Which of the following is NOT a valid number type?

3. Which of the following represents a Floating-Point Number?

4. Which of the following represents a negative number?

5. How would you multiply two numbers?