Keystones — Cornerstone
Five GCSE retrieval questions · 12 June 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Calculate: 1⁄6 × 6
Answer: 1 -
2. Algebra Expanding single brackets
Expand: 4(2x + 4)
Answer: 8x + 16 -
3. Geometry Pythagoras — short side
In a right triangle, if c = 5cm and a = 3cm, find b
Answer: 4cm -
4. Ratio Ratio given the difference
A and B share in ratio 2:1. If the difference is 63, what does A get?
Answer: 126 -
5. Statistics Range
Calculate the range of: 51, 30, 34, 29, 66, 30
Answer: 37