Keystones — Bedrock
Five GCSE retrieval questions · 30 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 53 + 21
Answer: 53 + 21 = 74 -
2. Algebra Substitution
If x = 4, find the value of 2x + 8
Answer: 16 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:16
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 20, 14, 13, 17, 18
Answer: 16.4