Keystones — Bedrock
Five GCSE retrieval questions · 18 October 2026 · mathsvault.uk/keystones
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1. Number Multiplying and dividing by powers of ten
Calculate: 72 × 1000
Answer: 72000 -
2. Algebra Generating sequence terms
Find the first 4 terms of: 5n + 3
Answer: 8, 13, 18, 23 -
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 1:2. If A gets 37, how much does B get?
Answer: 74 -
5. Statistics Averages and range
Find the mean, median and range of: 24, 21, 35, 13, 35
Answer: Mean = 25.6, Median = 24, Range = 22