Online adding calculator. Calculate the sum of 2 numbers.

Enter 2 numbers to add and press the = button to get the sum result:

 Enter first number: + Enter second number: Sum result:

Here we discuss list of online math calculators that help us for doing calculation easily.

The Sum (Summation) Calculator is used to calculate the total summation of any set of numbers. In mathematics, summation is the addition of a sequence of any kind of numbers, called addends or summands; the result is their sum or total.

Addition and sum calculator helps you add a long number with decimal values. It supports very long numbers with decimal values calculation.

#### How to use Addition and sum calculator?

For using addition and sum calculator you need to follow below steps.

2. Enter the two numbers which you want to do an addition.

3. Click on "Calculate" to get a result.

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.

The following are the rules of addition operation:

1. Positive Number + Positive Number = (Add) Positive Number

2. Negative Number + Negative Number = (Add) Negative Number

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