Keystones — Bedrock
Five GCSE retrieval questions · 31 January 2026 · mathsvault.uk/keystones
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1. Number Adding directed numbers
Calculate: 0 + 9
Answer: 9 -
2. Algebra Two-step equations
Solve: 2x + 5 = 17
Answer: x = 6 -
3. Geometry Converting units of time
Convert 9 minutes to seconds
Answer: 540 seconds -
4. Ratio Writing a ratio as 1 : n
Write 3:9 in the form 1:n
Answer: 1:3 -
5. Statistics Range
Find the range of: 18, 18, 27, 31, 28
Answer: 13