Keystones — Bedrock
Five GCSE retrieval questions · 30 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 38
Answer: 28 + 38 = 66 -
2. Algebra Substitution
If x = 6, find the value of 3x + 7
Answer: 25 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:32
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 12, 14, 15, 7
Answer: 12