Keystones — Bedrock
Five GCSE retrieval questions · 12 September 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 24 + 14
Answer: 24 + 14 = 38 -
2. Algebra Substitution
If x = 9, find the value of 4x + 9
Answer: 45 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 35:30
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 7, 6, 17
Answer: 10