Keystones — Bedrock
Five GCSE retrieval questions · 2 August 2026 · mathsvault.uk/keystones
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1. Number Simplifying fractions
Simplify: 18⁄24
Answer: 6⁄8 -
2. Algebra Next term in a sequence
Find the next term: 7, 15, 23, 31, ...
Answer: 39 -
3. Geometry Properties of polygons
A polygon has interior angles summing to 1080°. How many sides?
Answer: 8 -
4. Ratio Sharing in a ratio
Share 108 in the ratio 2:1
Answer: 72 and 36 -
5. Statistics Median
Find the median of: 14, 20, 17, 9, 15
Answer: 15