Keystones — Cornerstone
Five GCSE retrieval questions · 11 July 2026 · mathsvault.uk/keystones
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1. Number Dividing fractions
Calculate: 5⁄2 ÷ 2
Answer: 5⁄4 -
2. Algebra Two-step inequalities
Solve: 4x + 5 < 36
Answer: x < 7.8 -
3. Geometry Area of a right-angled triangle
Find the area of a right triangle with base 7cm and height 11cm
Answer: 38.5cm² -
4. Ratio Unitary method
8 kg costs £43.00. What is the cost of 19 kg?
Answer: £102.13 -
5. Statistics Mode
Find the mode of: 13, 11, 15, 13, 13, 15
Answer: 13