Keystones — Bedrock
Five GCSE retrieval questions · 11 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 44 + 27
Answer: 44 + 27 = 71 -
2. Algebra Substitution
If x = 7, find the value of 2x + 4
Answer: 18 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:8
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 5, 17, 8, 19, 1
Answer: 10