Keystones — Bedrock
Five GCSE retrieval questions · 23 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 49
Answer: 41 + 49 = 90 -
2. Algebra Substitution
If x = 7, find the value of 2x + 10
Answer: 24 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 12, 4, 20
Answer: 12