Keystones — Bedrock
Five GCSE retrieval questions · 22 July 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 73 + 65
Answer: 73 + 65 = 138 -
2. Algebra Substitution
If x = 2, find the value of 6x + 8
Answer: 20 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:12
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 3, 15, 3, 2, 8
Answer: 6.2