Keystones — Bedrock
Five GCSE retrieval questions · 8 August 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 20
Answer: 31 + 20 = 51 -
2. Algebra Substitution
If x = 9, find the value of 2x + 9
Answer: 27 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:24
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 2, 13, 15, 11, 10
Answer: 10.2