Keystones — Bedrock
Five GCSE retrieval questions · 28 August 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 27 × 100
Answer: 2700 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 2n + 4
Answer: 6, 8, 10, 12 -
3. Geometry Converting volume units
Convert 8 litres to ml
Answer: 8000ml -
4. Ratio Finding a share from another
A and B share in ratio 1:3. If A gets 47, how much does B get?
Answer: 141 -
5. Statistics Averages and range
Find the mean, median and range of: 10, 21, 32, 29, 35
Answer: Mean = 25.4, Median = 29, Range = 25