Keystones — Bedrock
Five GCSE retrieval questions · 3 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 25
Answer: 47 + 25 = 72 -
2. Algebra Substitution
If x = 10, find the value of 4x + 4
Answer: 44 -
3. Geometry Converting lengths
Convert 35cm to mm
Answer: 350mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 10, 19, 10, 21
Answer: 15