Keystones — Bedrock
Five GCSE retrieval questions · 2 January 2026 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 22
Answer: 21 + 22 = 43 -
2. Algebra Substitution
If x = 3, find the value of 6x + 7
Answer: 25 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 16, 10, 4
Answer: 12.5