1. What is Addition?

Addition is one of the four basic operations of arithmetic, along with subtraction, multiplication and division. It represents combining collections of objects together into a larger collection.

2. How Does the Calculator Work?

The calculator uses the basic addition formula:

Where:

• \( a, b, \dots \) — Numbers to be added
• \( Sum \) — Result of the addition

Explanation: The calculator simply adds all the numbers you input together.

3. Importance of Addition

Details: Addition is fundamental to mathematics and daily life. It's used in counting, measuring, financial calculations, and virtually all areas that involve numbers.

4. Using the Calculator

Tips: Enter at least two numbers (all three fields are optional). The calculator will sum all provided numbers.

5. Frequently Asked Questions (FAQ)

Q1: How many numbers can I add?
A: This calculator allows adding up to 3 numbers, but mathematically you can add any quantity of numbers.

Q2: Can I add decimal numbers?
A: Yes, the calculator supports both whole numbers and decimals.

Q3: What happens if I leave a field blank?
A: Blank fields are treated as zero in the calculation.

Q4: Can I add negative numbers?
A: Yes, the calculator handles negative numbers correctly according to arithmetic rules.

Q5: Is there a limit to how large the numbers can be?
A: The calculator uses standard floating-point arithmetic, so very large numbers may lose precision.