Keystones — Bedrock
Five GCSE retrieval questions · 21 August 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 73 + 98
Answer: 73 + 98 = 171 -
2. Algebra Substitution
If x = 5, find the value of 8x + 4
Answer: 44 -
3. Geometry Converting lengths
Convert 5m to cm
Answer: 500cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:35
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 9, 14, 12, 20, 8
Answer: 12.6