Keystones — Bedrock
Five GCSE retrieval questions · 7 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 13
Answer: 12 + 13 = 25 -
2. Algebra Substitution
If x = 2, find the value of 2x + 12
Answer: 16 -
3. Geometry Converting lengths
Convert 41cm to mm
Answer: 410mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 7, 20, 12
Answer: 13