Keystones — Cornerstone
Five GCSE retrieval questions · 13 January 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Calculate: 4⁄8 × 8
Answer: 4 -
2. Algebra Expanding single brackets
Expand: 4(3x + 6)
Answer: 12x + 24 -
3. Geometry Pythagoras — short side
Find b if a = 9cm and c = 15cm
Answer: 12cm -
4. Ratio Ratio given the difference
A and B share in ratio 7:2. If the difference is 200, what does A get?
Answer: 280 -
5. Statistics Range
Calculate the range of: 41, 61, 58, 41, 85, 92
Answer: 51