Keystones — Bedrock
Five GCSE retrieval questions · 16 August 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 33
Answer: 41 + 33 = 74 -
2. Algebra Substitution
If x = 7, find the value of 3x + 12
Answer: 33 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 20, 2, 10, 20, 2
Answer: 10.8