In this article, we’ll guide you through creating a basic calculator using HTML and JavaScript. This calculator will allow you to perform addition on two input values. We’ll provide you with the code for the calculator and explain how it works.

**Formula:** The formula for this calculator is straightforward. It adds two input values together. Here’s the formula in normal text format:

Result = Value A + Value B

**How to Use:** Using this calculator is quite simple. Just follow these steps:

- Enter a numerical value in the “Enter value A” field.
- Enter another numerical value in the “Enter value B” field.
- Click the “Calculate” button.
- The result of the addition will appear in the “Result” field.

**Example:** Let’s say you want to add 5 and 3 using our calculator. Here’s what you would do:

- Enter “5” in the “Enter value A” field.
- Enter “3” in the “Enter value B” field.
- Click the “Calculate” button.

The result will be displayed as “Result: 8” in the designated field.

**FAQs:**

**Q:**What is the purpose of this calculator?**A:**This calculator is designed for simple addition calculations.**Q:**Can I use decimal values?**A:**Yes, you can use decimal values. The calculator supports both whole numbers and decimals.**Q:**Is this calculator suitable for more complex operations?**A:**No, this calculator is limited to addition. It’s not suitable for complex mathematical operations.**Q:**What happens if I don’t enter any values and click “Calculate”?**A:**The calculator will prompt you to enter both values, and it won’t perform any calculations until valid input is provided.**Q:**Can I use negative numbers?**A:**Yes, you can use negative numbers in this calculator.**Q:**How can I reset the calculator?**A:**You can simply enter new values in the input fields, and the previous result will be replaced.**Q:**Is there a limit to the number of decimal places in the result?**A:**No, there is no limit to the number of decimal places in the result.**Q:**Can I use this calculator on mobile devices?**A:**Yes, this calculator is designed to work on both desktop and mobile devices.**Q:**Can I customize the calculator’s appearance?**A:**You can apply your own CSS styles to the calculator to customize its appearance.**Q:**Can I add more functionality to this calculator?**A:**Yes, you can extend this calculator to perform other mathematical operations if you have JavaScript programming skills.

**Conclusion:** Creating a simple calculator using HTML and JavaScript is a great way to learn the basics of web development. This calculator is a starting point, and you can build upon it to create more advanced calculators or incorporate it into your web projects. We hope this article has been helpful in understanding the process of creating a basic calculator.