Keystones — Bedrock
Five GCSE retrieval questions · 20 February 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 31
Answer: 33 + 31 = 64 -
2. Algebra Substitution
If x = 6, find the value of 2x + 10
Answer: 22 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:21
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 13, 4, 10, 7
Answer: 8.5