Keystones — Bedrock
Five GCSE retrieval questions · 9 December 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 20
Answer: 27 + 20 = 47 -
2. Algebra Substitution
If x = 9, find the value of 5x + 10
Answer: 55 -
3. Geometry Converting lengths
Convert 26cm to mm
Answer: 260mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 14, 9, 17, 3, 17
Answer: 12