Keystones — Bedrock
Five GCSE retrieval questions · 5 October 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 45
Answer: 40 + 45 = 85 -
2. Algebra Substitution
If x = 10, find the value of 7x + 12
Answer: 82 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:8
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 6, 11, 11, 2, 9
Answer: 7.8