Add Two Numbers
Add two numbers and get the result instantly
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How It Works
Addition is the mathematical operation of combining two numbers to get their sum.
- Enter two numbers
- Click Calculate
- View the result
Popular Addition Calculations
Try these popular addition calculations or create your own.
Mathematical Explanation
Addition is a fundamental arithmetic operation that combines two or more numbers to find their total sum. The mathematical symbol for addition is '+', and the operation follows the commutative property (a + b = b + a) and associative property ((a + b) + c = a + (b + c)). In addition, the first number is called the 'augend' and the second is the 'addend', with their result being the 'sum'. This operation is essential in algebra, calculus, statistics, and virtually every area of mathematics, serving as the foundation for more complex mathematical concepts.
Frequently Asked Questions
Addition is a basic arithmetic operation that combines two or more numbers to find their total sum. It's represented by the '+' symbol and is one of the four fundamental mathematical operations.
To add decimal numbers, align the decimal points vertically and add each column from right to left, carrying over when necessary. Our calculator handles this automatically for precise results.
Addition has several key properties: commutative (order doesn't matter), associative (grouping doesn't matter), and the identity property (adding zero doesn't change the number).
Yes, you can add negative numbers. When adding a negative number, it's equivalent to subtraction. For example, 5 + (-3) equals 5 - 3 = 2.
In mathematics, 'sum' and 'total' are often used interchangeably to describe the result of addition. Both terms refer to the final answer when two or more numbers are added together.
Resources & References
Encyclopedia Resources
- Addition - Wikipedia - Comprehensive overview of addition in mathematics
- Arithmetic - Wikipedia - Fundamental arithmetic operations including addition
Educational Resources
- Khan Academy - Addition - Free lessons on addition and arithmetic
- Math is Fun - Addition - Interactive addition lessons and examples