Keystones — Bedrock
Five GCSE retrieval questions · 29 January 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 19
Answer: 34 + 19 = 53 -
2. Algebra Substitution
If x = 7, find the value of 3x + 6
Answer: 27 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:9
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 20, 9, 13, 14
Answer: 14