Keystones — Bedrock
Five GCSE retrieval questions · 17 August 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 27
Answer: 30 + 27 = 57 -
2. Algebra Substitution
If x = 9, find the value of 3x + 8
Answer: 35 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 20, 8, 4, 9
Answer: 10.25