Keystones — Bedrock
Five GCSE retrieval questions · 24 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 18
Answer: 40 + 18 = 58 -
2. Algebra Substitution
If x = 3, find the value of 4x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:35
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 4, 7, 9, 5, 10
Answer: 7