Keystones — Bedrock
Five GCSE retrieval questions · 25 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 28
Answer: 12 + 28 = 40 -
2. Algebra Substitution
If x = 3, find the value of 3x + 8
Answer: 17 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:12
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 4, 4, 10
Answer: 6