Keystones — Bedrock
Five GCSE retrieval questions · 24 January 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 20
Answer: 77 + 20 = 97 -
2. Algebra Substitution
If x = 5, find the value of 5x + 10
Answer: 35 -
3. Geometry Converting lengths
Convert 43cm to mm
Answer: 430mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:32
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 5, 11, 6, 12, 18
Answer: 10.4