Keystones — Bedrock
Five GCSE retrieval questions · 4 April 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 84 × 1000
Answer: 84000 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 5n + 4
Answer: 9, 14, 19, 24 -
3. Geometry Converting volume units
Convert 7 litres to ml
Answer: 7000ml -
4. Ratio Finding a share from another
A and B share in ratio 1:3. If A gets 40, how much does B get?
Answer: 120 -
5. Statistics Averages and range
Find the mean, median and range of: 16, 20, 26, 37, 20
Answer: Mean = 23.8, Median = 20, Range = 21