Keystones — Cornerstone
Five GCSE retrieval questions · 12 July 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Divide: 2⁄4 ÷ 4⁄5
Answer: 5⁄8 -
2. Algebra Two-step inequalities
Solve: 3x + 9 < 38
Answer: x < 9.7 -
3. Geometry Area of a right-angled triangle
Calculate the area of a right triangle with perpendicular sides 14cm and 7cm
Answer: 49cm² -
4. Ratio Unitary method
6 kg costs £45.60. What is the cost of 18 kg?
Answer: £136.80 -
5. Statistics Mode
Find the mode of: 9, 14, 5, 5, 5, 5
Answer: 5