Keystones — Bedrock
Five GCSE retrieval questions · 28 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 86 + 86
Answer: 86 + 86 = 172 -
2. Algebra Substitution
If x = 7, find the value of 8x + 4
Answer: 60 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:9
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 24, 9, 12
Answer: 15