Keystones — Bedrock
Five GCSE retrieval questions · 23 January 2025 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 77 + 45
Answer: 77 + 45 = 122 -
2. Algebra Substitution
If x = 9, find the value of 7x + 8
Answer: 71 -
3. Geometry Converting lengths
Convert 10cm to mm
Answer: 100mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 8, 19, 12, 9
Answer: 12