Keystones — Bedrock
Five GCSE retrieval questions · 23 November 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 20
Answer: 12 + 20 = 32 -
2. Algebra Substitution
If x = 4, find the value of 3x + 5
Answer: 17 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 12, 11, 13
Answer: 12