Key term for Edexcel GCSE Mathematics, used in Ratio and Proportion Fundamentals.
A system using small numbers dropped below the line to act as counters for time periods, such as and .
Subscript notation appears in Edexcel GCSE Mathematics revision content for Ratio, Proportion and Rates of Change, especially Ratio and Proportion Fundamentals and Growth and Decay.
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Algebra
Solving Equations and Inequalities • Iterative Methods
