Keystones — Bedrock
Five GCSE retrieval questions · 11 June 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 39
Answer: 23 + 39 = 62 -
2. Algebra Substitution
If x = 2, find the value of 6x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 11, 9, 15, 20
Answer: 13.75