Keystones — Bedrock
Five GCSE retrieval questions · 25 August 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 47 × 100
Answer: 4700 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 5n + 3
Answer: 8, 13, 18, 23 -
3. Geometry Converting volume units
Convert 10 litres to ml
Answer: 10000ml -
4. Ratio Finding a share from another
A and B share in ratio 1:4. If A gets 10, how much does B get?
Answer: 40 -
5. Statistics Averages and range
Find the mean, median and range of: 25, 17, 33, 37, 19
Answer: Mean = 26.2, Median = 25, Range = 20