The meaning of SUM is an indefinite or specified amount of money. How to use sum in a sentence.

sum noun (CALCULATION) [ C ] a calculation, especially a simple one, using such processes as adding, taking away, multiplying, or dividing:

Summation of a sequence of only one summand results in the summand itself. Summation of an empty sequence (a sequence with no elements), by convention, results in 0. Very often, the …

Definition of sum noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

The sum can be defined as the result of the addition of two or more numbers. Learn the definition, how to find the sum on the number line, solved examples, and more.

In math, the summation symbol (∑) is used to denote the summation operation, which is a way of expressing the addition of a sequence of terms.

Nov 17, 2025 · The sum of the terms of a sequence is called a series. Summation notation is used to represent series. Summation notation is often known as sigma notation because it …

In this article, you will learn the definition of sum, and how to find the sum of numbers in different situations along with illustrations. In mathematics, the sum can be defined as the result or …

Jul 23, 2025 · In mathematics, the summation is the basic addition of a sequence of numbers, called addends or summands; the result is their sum or total. The summation of an explicit …

sum noun [C] (TOTAL) the total amount that you get when you add two or more numbers together: