Keystones — Cornerstone
Five GCSE retrieval questions · 9 June 2026 · mathsvault.uk/keystones
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1. Number Multiplying fractions
Calculate: 2⁄9 × 5
Answer: 10⁄9 -
2. Algebra Expanding single brackets
Expand: 6(x + 9)
Answer: 6x + 54 -
3. Geometry Pythagoras — short side
Find b if a = 13cm and c = 23cm
Answer: 18.97cm -
4. Ratio Ratio given the difference
A and B share in ratio 2:1. If the difference is 44, what does A get?
Answer: 88 -
5. Statistics Range
Find the range of: 41, 33, 40, 16, 22
Answer: 25