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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. 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.

  4. 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 …

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

    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.

  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. SUM definition in American English | Collins English Dictionary

    In mathematics, the sum of two or more numbers is the number that is obtained when they are added together. The sum of all the angles of a triangle is 180 degrees.

  8. Summation Symbol (∑)

    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.

  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. Sum - Math.net

    When trying to find the sum of multiple numbers, or larger numbers, it is helpful to remember the properties of addition. In particular, the commutative and associative properties of addition allow us …