Keystones — Bedrock
Five GCSE retrieval questions · 28 April 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 68 + 68
Answer: 68 + 68 = 136 -
2. Algebra Substitution
If x = 8, find the value of 5x + 4
Answer: 44 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:16
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 14, 4, 12, 9, 15
Answer: 10.8