Keystones — Bedrock
Five GCSE retrieval questions · 30 June 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 44
Answer: 25 + 44 = 69 -
2. Algebra Substitution
If x = 8, find the value of 6x + 5
Answer: 53 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:6
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 15, 12, 2
Answer: 9.6666666666667