Keystones — Bedrock
Five GCSE retrieval questions · 13 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 22
Answer: 12 + 22 = 34 -
2. Algebra Substitution
If x = 2, find the value of 4x + 5
Answer: 13 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 14:12
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 13, 16, 13, 9, 19
Answer: 14