Keystones — Bedrock
Five GCSE retrieval questions · 8 May 2026 · mathsvault.uk/keystones
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1. Number Adding directed numbers
Calculate: -3 + (-4)
Answer: -7 -
2. Algebra Two-step equations
Solve: 5x + 5 = 65
Answer: x = 12 -
3. Geometry Converting units of time
Convert 8 minutes to seconds
Answer: 480 seconds -
4. Ratio Writing a ratio as 1 : n
Write 7:21 in the form 1:n
Answer: 1:3 -
5. Statistics Range
Find the range of: 28, 20, 21, 18, 45
Answer: 27