Keystones — Bedrock
Five GCSE retrieval questions · 27 December 2025 · mathsvault.uk/keystones
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1. Number
Calculate: 89 + 86
Answer: 89 + 86 = 175 -
2. Algebra
Find the next term: 18, 23, 28, 33, ...
Answer: 38 -
3. Geometry
Opposite = 11cm, hypotenuse = 12.7cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 10:4
Answer: 5:2 -
5. Statistics
Find the mean of: 20, 9, 18
Answer: 15.666666666667