Keystones — Bedrock
Five GCSE retrieval questions · 11 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 12
Answer: 12 + 12 = 24 -
2. Algebra Substitution
If x = 5, find the value of 2x + 12
Answer: 22 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:12
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 4, 9, 7, 11, 9
Answer: 8