Keystones — Bedrock
Five GCSE retrieval questions · 7 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 17
Answer: 39 + 17 = 56 -
2. Algebra Substitution
If x = 4, find the value of 8x + 5
Answer: 37 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:16
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 11, 20, 13, 14
Answer: 14.5