Keystones — Bedrock
Five GCSE retrieval questions · 30 September 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 36 + 27
Answer: 36 + 27 = 63 -
2. Algebra Substitution
If x = 10, find the value of 5x + 9
Answer: 59 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:40
Answer: 5:8 -
5. Statistics Mean
Find the mean of: 18, 12, 6, 14, 10
Answer: 12