Keystones — Bedrock
Five GCSE retrieval questions · 21 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 16 + 40
Answer: 16 + 40 = 56 -
2. Algebra
Find the next term: 27, 33, 39, 45, ...
Answer: 51 -
3. Geometry
Opposite = 15cm, hypotenuse = 21.2cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 6:16
Answer: 3:8 -
5. Statistics
Find the mean of: 16, 17, 12, 16
Answer: 15.25