Keystones — Bedrock
Five GCSE retrieval questions · 10 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 10
Answer: 17 + 10 = 27 -
2. Algebra Substitution
If x = 2, find the value of 8x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:8
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 11, 9, 2, 5
Answer: 6.75