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  1. SUM Definition & Meaning - Merriam-Webster

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

  2. Sum Calculator

    Nov 4, 2025 · Use this calculator to find the sum of a data set. Enter values separated by commas or spaces. Or copy and paste lines of data from spreadsheets or text documents. See all allowable …

  3. Use the SUM function to sum numbers in a range - Microsoft Support

    You can use a simple formula to sum numbers in a range (a group of cells), but the SUM function is easier to use when you’re working with more than a few numbers.

  4. How to Use SUM Function in Excel (6 Easy Examples)

    Jun 30, 2024 · This tutorial will teach you 6 easy examples to use the SUM function in excel. A workbook is also included to download and practice.

  5. SUM Definition & Meaning | Dictionary.com

    SUM definition: the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition. See examples of sum used in a …

  6. What is Sum? Definition, Formulas, Examples, Facts - SplashLearn

    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.

  7. Summation - Wikipedia

    The phrase 'algebraic sum' refers to a sum of terms which may have positive or negative signs. Terms with positive signs are added, while terms with negative signs are subtracted.

  8. Summation Formulas - GeeksforGeeks

    Feb 20, 2026 · Building on the concept of summation, a more compact and systematic way to represent a sum is through summation notation, also known as sigma (∑) notation. This notation allows us to …

  9. Sum Definition (Illustrated Mathematics Dictionary)

    Illustrated definition of Sum: The result of adding two or more numbers. Example: 9 is the sum of 2, 4 and 3 (because 2 + 4 + 3 = 9). Drag...

  10. Excel SUM Function - W3Schools

    The SUM function is a premade function in Excel, which adds numbers in a range. It is typed =SUM. Note: The =SUM function adds cells in a range, both negative and positive. How to use the =SUM …