Keystones — Bedrock
Five GCSE retrieval questions · 28 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 17
Answer: 33 + 17 = 50 -
2. Algebra Substitution
If x = 9, find the value of 7x + 6
Answer: 69 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 3, 23, 7
Answer: 11