Keystones — Bedrock
Five GCSE retrieval questions · 26 April 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 69 + 73
Answer: 69 + 73 = 142 -
2. Algebra Substitution
If x = 2, find the value of 3x + 3
Answer: 9 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 6, 2, 17, 15, 5
Answer: 9