Keystones — Bedrock
Five GCSE retrieval questions · 15 December 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 98 + 38
Answer: 98 + 38 = 136 -
2. Algebra Substitution
If x = 10, find the value of 5x + 10
Answer: 60 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:4
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 12, 13, 3, 13, 9
Answer: 10