Keystones — Bedrock
Five GCSE retrieval questions · 29 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 44 + 27
Answer: 44 + 27 = 71 -
2. Algebra Substitution
If x = 5, find the value of 3x + 10
Answer: 25 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:10
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 3, 23, 4, 14
Answer: 11