Keystones — Bedrock
Five GCSE retrieval questions · 15 February 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 35 × 1000
Answer: 35000 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 2n + 7
Answer: 9, 11, 13, 15 -
3. Geometry Converting volume units
Convert 8 litres to ml
Answer: 8000ml -
4. Ratio Finding a share from another
A and B share in ratio 4:3. If A gets 128, how much does B get?
Answer: 96 -
5. Statistics Averages and range
Find the mean, median and range of: 12, 31, 24, 35, 26
Answer: Mean = 25.6, Median = 26, Range = 23