Keystones — Bedrock
Five GCSE retrieval questions · 7 February 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 39
Answer: 42 + 39 = 81 -
2. Algebra Substitution
If x = 6, find the value of 6x + 4
Answer: 40 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:16
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 10, 2, 7, 17
Answer: 9