Skip to content
    Mathematics GCSE

    Exact value

    What Exact value means in Mathematics GCSE, as defined for AQA, Pearson Edexcel.

    Definitions of Exact value

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    Check what you remember

    Read the wording for your board, then hide it and explain Exact value in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    A value represented without rounding or approximation. Fractions, integers and terminating decimals can all be exact.
    AQA · Structure and calculation (study guide)
    A value stated without rounding. It may be a fraction, a multiple of π, or a terminating decimal such as 0.75.
    Pearson Edexcel · Number - Structure and calculation (study guide)
    A value written without approximation or rounding, such as a simplified surd or an exact fraction.
    AQA · Structure and calculation (study guide)
    A value written without approximation, for example an integer, a fraction or a simplified surd.
    Pearson Edexcel · Number - Structure and calculation (study guide)
    A value expressed without rounding, such as 1/2 or √3/2.
    Pearson Edexcel · Geometry and measures - Mensuration and calculation (study guide)
    A value represented without approximation or rounding.
    Pearson Edexcel · Number - Fractions, decimals and percentages (study guide)

    Topics that use Exact value

    Related terms

    Using Exact value in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Mathematics questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Mathematics GCSE terms