Keystones — Bedrock
Five GCSE retrieval questions · 7 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 87 + 50
Answer: 87 + 50 = 137 -
2. Algebra Substitution
If x = 8, find the value of 4x + 12
Answer: 44 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:16
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 12, 9, 11, 17, 16
Answer: 13