Keystones — Lintel

Five GCSE retrieval questions · 9 December 2024 · mathsvault.uk/keystones

1. Number

Add: ³⁄₅ + ⁷⁄₈

Answer: ⁵⁹⁄₄₀
2. Algebra

Factorise: 6x² + 2x

Answer: 2x(3x + 1)
3. Geometry

Calculate perimeter: two sides are 11cm and 8cm at right angles

Answer: 32.6cm
4. Ratio

Find 65% of 250

Answer: 162.5
5. Statistics

Calculate the mean of: 33, 42, 33, 16, 17, 31, 18, 28

Answer: 27.3

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