Keystones — Bedrock
Five GCSE retrieval questions · 11 February 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 8 × 100
Answer: 800 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 5n + 3
Answer: 8, 13, 18, 23 -
3. Geometry Converting volume units
Convert 9 litres to ml
Answer: 9000ml -
4. Ratio Finding a share from another
A and B share in ratio 1:3. If A gets 41, how much does B get?
Answer: 123 -
5. Statistics Averages and range
Find the mean, median and range of: 31, 30, 21, 13, 20
Answer: Mean = 23, Median = 21, Range = 18