Keystones — Bedrock
Five GCSE retrieval questions · 30 September 2026 · mathsvault.uk/keystones
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1. Number Adding directed numbers
Calculate: -10 + (-8)
Answer: -18 -
2. Algebra Two-step equations
Solve: 6x + 8 = 44
Answer: x = 6 -
3. Geometry Converting units of time
Convert 3 minutes to seconds
Answer: 180 seconds -
4. Ratio Writing a ratio as 1 : n
Write 5:15 in the form 1:n
Answer: 1:3 -
5. Statistics Range
Find the range of: 39, 18, 35, 15, 25
Answer: 24