Math & Statistics

What Is Absolute Value?

The absolute value of a number is its distance from zero on the number line, regardless of direction, so it is never negative. It is written with vertical bars: |−7| = 7 and |7| = 7.

Absolute Difference

|a − b| gives the size of the gap between two numbers regardless of order — for example, |45 − 52| = 7.

Where It Is Used

Measuring errors, distances, deviations from an average, and changes where only the size matters.

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🔗 Related Terms

Percentage Change Mean (Average) Standard Deviation

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Last updated: September 29, 2026. This definition is for general educational purposes only. It is not financial, investment, tax, legal, or medical advice, and it does not recommend any product or course of action. For decisions about your own situation, consult a qualified professional.