Keystones — Bedrock
Five GCSE retrieval questions · 1 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 78
Answer: 48 + 78 = 126 -
2. Algebra Substitution
If x = 8, find the value of 3x + 9
Answer: 33 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:24
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 11, 6, 5
Answer: 7.3333333333333