 First number

Second number

Sum Addition Calculator is a free online tool that displays the sum of two numbers. BYJU’S online addition calculator tool makes the calculation faster, and it displays the sum in a fraction of seconds.

## How to Use the Addition Calculator?

The procedure to use the addition calculator is as follows:
Step 1: Enter two numbers in the respective input field
Step 2: Now click the button “Solve” to get the sum
Step 3: Finally, the sum of the two numbers will be displayed in the output field

### What is Meant by Addition?

In Mathematics, addition is one of the arithmetic operations. It gives the sum of the numbers. In other words, the process of adding the numbers together is called addition. The symbol used to represent the addition is “+”. The result obtained from the addition process is called the sum. The numbers which are added together are called addends.
For example,
3 + 5 = 8
Here,
3 and 5 are called addends
“+” Is called an arithmetic operator
8 is called the sum

An addition is one of the four basic mathematical operations that shows two or more numbers added together to get the sum.

### Mention the rules of addition.

The following are the rules of addition operation:

• Positive Number + Positive Number = (Add) Positive Number
• Negative Number + Negative Number = (Add) Negative Number
• Negative Number + Positive Number = (Subtract) Take the sign of the number with the largest absolute value

### What is meant by addend and sum?

In addition process, the numbers which are added together are called the addends and the result of the addition process is called the sum or total.

### What is the sum of -15 and 6?

As we know that if we want to add one negative number and positive number, subtract the given numbers and the sign should be taken from the largest absolute number. Hence, the sum becomes:
-15 + 6 = -9

### Mention the four addition properties.

The four properties of addition are:

• Associative property
• Closure property
• Commutative property