Keystones — Bedrock
Five GCSE retrieval questions · 23 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 52 + 62
Answer: 52 + 62 = 114 -
2. Algebra Substitution
If x = 2, find the value of 7x + 9
Answer: 23 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:16
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 10, 5, 21
Answer: 12