Keystones — Bedrock
Five GCSE retrieval questions · 12 March 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 28
Answer: 27 + 28 = 55 -
2. Algebra Substitution
If x = 8, find the value of 3x + 6
Answer: 30 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:8
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 13, 7, 18
Answer: 12.666666666667