Keystones — Cornerstone
Five GCSE retrieval questions · 24 August 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Divide: 2⁄6 ÷ 3⁄8
Answer: 8⁄9 -
2. Algebra Two-step inequalities
Solve: 2x + 10 < 46
Answer: x < 18 -
3. Geometry Area of a right-angled triangle
Find the area of a right triangle with base 6cm and height 9cm
Answer: 27cm² -
4. Ratio Unitary method
7 kg costs £10.10. What is the cost of 19 kg?
Answer: £27.41 -
5. Statistics Mode
What are the modes of: 18, 32, 24, 18, 32, 33
Answer: 18 and 32