Keystones — Bedrock
Five GCSE retrieval questions · 9 July 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 79 + 75
Answer: 79 + 75 = 154 -
2. Algebra Substitution
If x = 8, find the value of 8x + 11
Answer: 75 -
3. Geometry Converting lengths
Convert 40cm to mm
Answer: 400mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:8
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 8, 5, 6, 12
Answer: 7.75