Keystones — Bedrock
Five GCSE retrieval questions · 13 February 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 15 × 1000
Answer: 15000 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 2n + 3
Answer: 5, 7, 9, 11 -
3. Geometry Converting volume units
Convert 6 litres to ml
Answer: 6000ml -
4. Ratio Finding a share from another
A and B share in ratio 1:4. If A gets 45, how much does B get?
Answer: 180 -
5. Statistics Averages and range
Find the mean, median and range of: 15, 20, 17, 32, 32
Answer: Mean = 23.2, Median = 20, Range = 17