Keystones — Bedrock
Five GCSE retrieval questions · 29 August 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 42
Answer: 27 + 42 = 69 -
2. Algebra Substitution
If x = 10, find the value of 4x + 3
Answer: 43 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:10
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 20, 10, 5, 12, 2
Answer: 9.8