Keystones — Bedrock
Five GCSE retrieval questions · 1 October 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 23
Answer: 28 + 23 = 51 -
2. Algebra Substitution
If x = 4, find the value of 5x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:16
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 22, 4, 11, 11
Answer: 12