Keystones — Cornerstone
Five GCSE retrieval questions · 8 July 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Calculate: 8⁄2 ÷ 4
Answer: 1⁄1 -
2. Algebra Two-step inequalities
Solve: 5x + 7 < 28
Answer: x < 4.2 -
3. Geometry Area of a right-angled triangle
Calculate the area of a right triangle with perpendicular sides 9cm and 10cm
Answer: 45cm² -
4. Ratio Unitary method
5 kg costs £18.70. What is the cost of 20 kg?
Answer: £74.80 -
5. Statistics Mode
Find the mode of: 9, 11, 6, 11, 11, 11
Answer: 11