Keystones — Bedrock
Five GCSE retrieval questions · 13 August 2026 · mathsvault.uk/keystones
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1. Number Adding directed numbers
Calculate: -2 + (-7)
Answer: -9 -
2. Algebra Two-step equations
Solve: 4x + 3 = 43
Answer: x = 10 -
3. Geometry Converting units of time
Convert 8 minutes to seconds
Answer: 480 seconds -
4. Ratio Writing a ratio as 1 : n
Write 2:4 in the form 1:n
Answer: 1:2 -
5. Statistics Range
Find the range of: 42, 19, 32, 34, 27
Answer: 23