Keystones — Bedrock
Five GCSE retrieval questions · 24 August 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 49 + 59
Answer: 49 + 59 = 108 -
2. Algebra Substitution
If x = 3, find the value of 5x + 8
Answer: 23 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 17, 5, 12, 18
Answer: 13