Keystones — Bedrock
Five GCSE retrieval questions · 1 July 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 18
Answer: 12 + 18 = 30 -
2. Algebra Substitution
If x = 7, find the value of 5x + 9
Answer: 44 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:6
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 16, 3, 16, 9
Answer: 11