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 …

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

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

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

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 …

Add numbers instantly with this sum calculator. Enter decimals, fractions, or negatives - results update in real time.

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...

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.

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

How to use the SUM function in Excel to add individual values, cell references, ranges, or a mix of all three.