Keystones — Bedrock
Five GCSE retrieval questions · 18 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 24 + 61
Answer: 24 + 61 = 85 -
2. Algebra Substitution
If x = 4, find the value of 4x + 8
Answer: 24 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:10
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 20, 17, 9, 17, 7
Answer: 14