Keystones — Bedrock
Five GCSE retrieval questions · 12 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 39 + 31
Answer: 39 + 31 = 70 -
2. Algebra Substitution
If x = 9, find the value of 6x + 7
Answer: 61 -
3. Geometry Converting lengths
Convert 33cm to mm
Answer: 330mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:9
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 11, 5, 8
Answer: 8