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Laws Of Indices Worksheet
Help your students prepare for their Maths GCSE with this free index laws worksheet of 53 questions and answers
- Section 1 of the index laws worksheet contains 45 skills-based index laws questions, in 3 groups to support differentiation
- Section 2 contains 4 applied index laws questions with a mix of worded problems and deeper problem solving questions
- Section 3 contains 4 foundation and higher level GCSE exam practice style questions involving all the laws of indices, either singularly or as a combination
- Answers and a mark scheme for all questions are provided
- Questions follow variation theory with plenty of opportunities for students to work independently at their own level
- All questions created by fully qualified expert secondary maths teachers
- Suitable for GCSE maths revision for AQA, OCR and Edexcel exam boards
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Index laws at a glance
The laws of indices are a set of rules which can be used to simplify questions involving indices. They are sometimes known as power laws or the rules of indices (exponents). A strong understanding of index form and index notation is helpful when using the laws of indices.
The first law of indices can be used when terms with the same base are multiplied together; in order to simplify the expression the powers can be added. The next law of indices can be used when terms with the same base are divided; in order to simplify the expression the powers can be subtracted. Another law of indices can be used when a term is raised to a power of a power; in order to simplify the expression the powers are multiplied.
Index laws also include negative indices (or negative powers) which involve writing the reciprocal of a number.
At Higher GCSE fractional indices are explored including square roots and cube roots. In the fractional indices the denominator of a fraction gives the root and the numerator gives the power the resulting term is raised to.
Looking forward, students can progress with more indices worksheets to additional algebra worksheets, for example a simplifying expressions worksheet or simultaneous equations worksheet.
For more teaching and learning support on Algebra our GCSE maths lessons provide step by step support for all GCSE maths concepts.
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