Keystones — Bedrock
Five GCSE retrieval questions · 16 September 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 77
Answer: 41 + 77 = 118 -
2. Algebra Substitution
If x = 2, find the value of 2x + 10
Answer: 14 -
3. Geometry Converting lengths
Convert 44cm to mm
Answer: 440mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 9, 20, 19, 3
Answer: 12.75