Keystones — Bedrock
Five GCSE retrieval questions · 17 March 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 23
Answer: 31 + 23 = 54 -
2. Algebra Substitution
If x = 4, find the value of 3x + 11
Answer: 23 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 17, 8, 19
Answer: 14.666666666667