Keystones — Bedrock
Five GCSE retrieval questions · 6 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 46 + 23
Answer: 46 + 23 = 69 -
2. Algebra Substitution
If x = 2, find the value of 7x + 9
Answer: 23 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 12, 4, 25, 19
Answer: 15