Keystones — Cornerstone
Five GCSE retrieval questions · 5 March 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Calculate: 2⁄8 × 6
Answer: 3⁄2 -
2. Algebra Expanding single brackets
Expand: 4(x + 2)
Answer: 4x + 8 -
3. Geometry Pythagoras — short side
Find b if a = 13cm and c = 17cm
Answer: 10.95cm -
4. Ratio Ratio given the difference
A and B share in ratio 5:3. If the difference is 48, what does A get?
Answer: 120 -
5. Statistics Range
Calculate the range of: 108, 77, 50, 91, 51, 74
Answer: 58