Keystones — Bedrock
Five GCSE retrieval questions · 20 February 2026 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 22
Answer: 71 + 22 = 93 -
2. Algebra Substitution
If x = 10, find the value of 5x + 11
Answer: 61 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:10
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 19, 8, 15, 20
Answer: 15.5