Keystones — Bedrock
Five GCSE retrieval questions · 21 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 94 + 23
Answer: 94 + 23 = 117 -
2. Algebra Substitution
If x = 9, find the value of 5x + 7
Answer: 52 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:28
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 10, 18, 5, 15
Answer: 12