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    Mathematics GCSE

    Irrational Number

    What Irrational Number means in Mathematics GCSE, as defined for Eduqas.

    Definition of Irrational Number

    A number that cannot be written as a simple fraction; its decimal goes on forever without repeating.
    Eduqas · Number (study guide)

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    Using Irrational Number in the exam

    Definition questions usually carry one or two marks, and examiners look for the precise wording. Write the definition from memory, check it against the version above, and then use the term in a longer answer on the same topic so it sticks.

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