Keystones — Bedrock
Five GCSE retrieval questions · 12 June 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 72
Answer: 90 + 72 = 162 -
2. Algebra Substitution
If x = 5, find the value of 8x + 12
Answer: 52 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:20
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 13, 15, 3
Answer: 10.333333333333