Keystones — Bedrock
Five GCSE retrieval questions · 12 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 45
Answer: 10 + 45 = 55 -
2. Algebra Substitution
If x = 5, find the value of 6x + 5
Answer: 35 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 14, 7, 12
Answer: 11