Keystones — Bedrock
Five GCSE retrieval questions · 27 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 41
Answer: 41 + 41 = 82 -
2. Algebra Substitution
If x = 5, find the value of 5x + 8
Answer: 33 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:18
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 8, 20, 4, 13, 15
Answer: 12