GCSE Grade 9-1 – Year 10 Revision Booklet

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1. Identify prime factors. 2. Identify the least common multiple of two numbers. 3. Identify the highest common factor of two multiples. 4. Multiply and divide positive and negative numbers. 5. Find one quantity as a fraction of another. 6. Add and subtract fractions with different denominators. 7. Multiply proper fractions and mixed numbers. 8. Divide by fractions. 9. Use a calculator to accurately solve problems involving fractions. 10. Increase and decrease quantities by a percentage. 11. Work out percentage change. 12. Express one quantity as a percentage of another.

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Explain in sentences or using algebra why your selected method for division of fractions works

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