Keystones — Bedrock
Five GCSE retrieval questions · 26 June 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 28
Answer: 10 + 28 = 38 -
2. Algebra Substitution
If x = 3, find the value of 4x + 8
Answer: 20 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 32:16
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 17, 18, 20, 14
Answer: 17.25