Keystones — Bedrock
Five GCSE retrieval questions · 20 May 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 39 × 1000
Answer: 39000 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 4n + 3
Answer: 7, 11, 15, 19 -
3. Geometry Converting volume units
Convert 5 litres to ml
Answer: 5000ml -
4. Ratio Finding a share from another
A and B share in ratio 3:1. If A gets 123, how much does B get?
Answer: 41 -
5. Statistics Averages and range
Find the mean, median and range of: 30, 18, 17, 38, 29
Answer: Mean = 26.4, Median = 29, Range = 21