Keystones — Bedrock
Five GCSE retrieval questions · 13 April 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 36
Answer: 21 + 36 = 57 -
2. Algebra Substitution
If x = 5, find the value of 2x + 5
Answer: 15 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 4, 10, 6, 15
Answer: 8.75