Keystones — Bedrock
Five GCSE retrieval questions · 15 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 38
Answer: 23 + 38 = 61 -
2. Algebra Substitution
If x = 7, find the value of 5x + 10
Answer: 45 -
3. Geometry Converting lengths
Convert 34cm to mm
Answer: 340mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:8
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 6, 13, 7, 2, 17
Answer: 9