Keystones — Bedrock
Five GCSE retrieval questions · 23 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 49
Answer: 45 + 49 = 94 -
2. Algebra Substitution
If x = 4, find the value of 4x + 12
Answer: 28 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 7, 3, 20
Answer: 10