Keystones — Bedrock
Five GCSE retrieval questions · 17 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 93 + 47
Answer: 93 + 47 = 140 -
2. Algebra Substitution
If x = 4, find the value of 2x + 10
Answer: 18 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 4, 12, 8
Answer: 8