Keystones — Bedrock
Five GCSE retrieval questions · 16 June 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 15
Answer: 28 + 15 = 43 -
2. Algebra Substitution
If x = 5, find the value of 2x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 16, 17, 12
Answer: 15