Keystones — Bedrock
Five GCSE retrieval questions · 24 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 69
Answer: 71 + 69 = 140 -
2. Algebra Substitution
If x = 3, find the value of 5x + 8
Answer: 23 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:30
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 6, 18, 5, 15
Answer: 11