Keystones — Bedrock
Five GCSE retrieval questions · 4 October 2026 · mathsvault.uk/keystones
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1. Number Adding directed numbers
Calculate: -2 + (-7)
Answer: -9 -
2. Algebra Two-step equations
Solve: 6x + 13 = 79
Answer: x = 11 -
3. Geometry Converting units of time
Convert 5 minutes to seconds
Answer: 300 seconds -
4. Ratio Writing a ratio as 1 : n
Write 4:20 in the form 1:n
Answer: 1:5 -
5. Statistics Range
Find the range of: 33, 14, 37, 13, 19
Answer: 24