Keystones — Bedrock
Five GCSE retrieval questions · 6 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 26 + 28
Answer: 26 + 28 = 54 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:28
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 18, 20, 14, 2, 10
Answer: 12.8