Keystones — Bedrock
Five GCSE retrieval questions · 17 June 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 67 + 27
Answer: 67 + 27 = 94 -
2. Algebra Substitution
If x = 9, find the value of 7x + 10
Answer: 73 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:10
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 18, 4, 2, 20
Answer: 11