Keystones — Bedrock
Five GCSE retrieval questions · 23 February 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 91
Answer: 20 + 91 = 111 -
2. Algebra Substitution
If x = 9, find the value of 5x + 9
Answer: 54 -
3. Geometry Converting lengths
Convert 26cm to mm
Answer: 260mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 14, 17, 16
Answer: 15.666666666667