Keystones — Bedrock
Five GCSE retrieval questions · 1 August 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 10
Answer: 42 + 10 = 52 -
2. Algebra Substitution
If x = 10, find the value of 2x + 5
Answer: 25 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 8, 3, 7, 17, 5
Answer: 8