Sum Calculator

A sum is the result of adding together a set of numbers. A sum is the total amount calculated by addition of those numbers. The calculation performed is called addition or summation. A sum can be used to simply calculate a total amount such as, counting the number of people on each floor of a building then adding those numbers together to get the total amount of people in the building. You can also use the sum of a set of numbers to calculate the statistical average and mean of those numbers