Number work in Cambridge Lower Secondary extends primary arithmetic to more complex operations with fractions, decimals, and percentages, and introduces ratio, proportion, indices, and standard form.
Operations with fractions: add, subtract, multiply, divide with different denominators. Converting between fractions, decimals, and percentages. Percentage calculations: increase, decrease, reverse percentage, simple and compound interest. Multiplier method for percentages.
Simplifying ratios, sharing in a given ratio, direct and inverse proportion. Unitary method. Map scales and real-life applications. Best-buy problems and recipe scaling.
Index notation and laws: aᵐ × aⁿ, aᵐ ÷ aⁿ, (aᵐ)ⁿ, a⁰, a⁻ⁿ. Square roots and cube roots. Standard form (a × 10ⁿ) for very large and very small numbers. Calculations in standard form.
Cambridge Lower Secondary (Stages 7–9) provides a structured progression into IGCSE. The maths curriculum builds algebraic, geometric, and statistical skills to exactly the level needed for IGCSE Mathematics (0580/0980). Students who complete Lower Secondary confidently are well-prepared for IGCSE Core or Extended tier.
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