Keystones — Cornerstone
Five GCSE retrieval questions · 28 August 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Calculate: 1⁄5 ÷ 2
Answer: 1⁄10 -
2. Algebra Two-step inequalities
Solve: 2x + 8 < 31
Answer: x < 11.5 -
3. Geometry Area of a right-angled triangle
Calculate the area of a right triangle with perpendicular sides 11cm and 7cm
Answer: 38.5cm² -
4. Ratio Unitary method
9 kg costs £16.00. What is the cost of 14 kg?
Answer: £24.89 -
5. Statistics Mode
What are the modes of: 34, 28, 10, 34, 18, 10
Answer: 10 and 34