Keystones — Bedrock
Five GCSE retrieval questions · 29 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 21
Answer: 12 + 21 = 33 -
2. Algebra Substitution
If x = 5, find the value of 3x + 12
Answer: 27 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 2, 14, 17, 11, 11
Answer: 11