Keystones — Bedrock
Five GCSE retrieval questions · 19 March 2026 · mathsvault.uk/keystones
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1. Number Adding directed numbers
Calculate: 3 + (-9)
Answer: -6 -
2. Algebra Two-step equations
Solve: 4x + 5 = 33
Answer: x = 7 -
3. Geometry Converting units of time
Convert 7 minutes to seconds
Answer: 420 seconds -
4. Ratio Writing a ratio as 1 : n
Write 8:40 in the form 1:n
Answer: 1:5 -
5. Statistics Range
Find the range of: 14, 33, 39, 41, 37
Answer: 27