Keystones — Bedrock
Five GCSE retrieval questions · 9 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 45
Answer: 71 + 45 = 116 -
2. Algebra Substitution
If x = 8, find the value of 5x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 31cm to mm
Answer: 310mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:12
Answer: 8:3 -
5. Statistics Mean
Find the mean of: 9, 9, 11, 11
Answer: 10