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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 | definition in the Cambridge English Dictionary

    SUM meaning: 1. an amount of money: 2. the whole number or amount when two or more numbers or amounts have been…. Learn more.

  3. SUM Definition & Meaning | Dictionary.com

    The result of adding numbers or quantities. The sum of 6 and 9, for example, is 15, and the sum of 4 x and 5 x is 9 x.

  4. sum - Wiktionary, the free dictionary

    1 day ago · From Mongolian сум (sum), from Manchu ᠨᡳᡵᡠ (niru, “a large arrow, militia company, district”). Ultimately from Proto-Mongolic *sumun (“arrow”).

  5. Sum - definition of sum by The Free Dictionary

    1. the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition: The sum of 6 and 8 is 14.

  6. SUM definition and meaning | Collins English Dictionary

    In mathematics, the sum of two numbers is the number that is obtained when they are added together.

  7. Sum | Definition, Examples & Practice - BrightChamps

    Oct 16, 2025 · In mathematics, addition is one of the four basic mathematical operations. The sum is the result of adding two or more numbers. In this article, we will discuss what a sum is, …

  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. Some vs. Sum: What's the Difference? - Grammarly

    The word sum is primarily used in mathematical contexts to denote the total achieved by adding numbers together. It can also refer to a concise statement or abstract of the main points of an …

  10. Sum Definition, Formula, Examples, Solved Solutions- Cuemath

    Learn about Sum with Definition, Solved examples, and Facts. Make your child a Math Thinker, the Cuemath way. Access FREE interactive worksheets on Sum.