Keystones — Bedrock
Five GCSE retrieval questions · 6 October 2022 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 52
Answer: 39 + 52 = 91 -
2. Algebra Substitution
If x = 8, find the value of 5x + 5
Answer: 45 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 5, 15, 18, 2, 9
Answer: 9.8