Keystones — Bedrock
Five GCSE retrieval questions · 22 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 85 + 87
Answer: 85 + 87 = 172 -
2. Algebra Substitution
If x = 8, find the value of 5x + 6
Answer: 46 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:24
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 8, 5, 11, 4, 17
Answer: 9