Keystones — Bedrock
Five GCSE retrieval questions · 4 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 40
Answer: 28 + 40 = 68 -
2. Algebra Substitution
If x = 8, find the value of 2x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:8
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 9, 24, 12
Answer: 15