Keystones — Cornerstone
Five GCSE retrieval questions · 12 February 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Calculate: 2⁄6 ÷ 6
Answer: 1⁄18 -
2. Algebra Two-step inequalities
Solve: 6x + 8 < 42
Answer: x < 5.7 -
3. Geometry Area of a right-angled triangle
Find the area of a right triangle with base 10cm and height 7cm
Answer: 35cm² -
4. Ratio Unitary method
9 kg costs £33.50. What is the cost of 24 kg?
Answer: £89.33 -
5. Statistics Mode
What are the modes of: 17, 38, 29, 16, 17, 38
Answer: 17 and 38