Keystones — Bedrock
Five GCSE retrieval questions · 10 February 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 16
Answer: 18 + 16 = 34 -
2. Algebra Substitution
If x = 8, find the value of 8x + 4
Answer: 68 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 12, 8, 6
Answer: 8.6666666666667