Keystones — Bedrock
Five GCSE retrieval questions · 20 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 73 + 48
Answer: 73 + 48 = 121 -
2. Algebra Substitution
If x = 8, find the value of 8x + 9
Answer: 73 -
3. Geometry Converting lengths
Convert 14cm to mm
Answer: 140mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:30
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 8, 19, 10
Answer: 12.333333333333