Keystones — Bedrock
Five GCSE retrieval questions · 14 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 25
Answer: 34 + 25 = 59 -
2. Algebra Substitution
If x = 4, find the value of 2x + 7
Answer: 15 -
3. Geometry Converting lengths
Convert 28cm to mm
Answer: 280mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:20
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 25, 14, 15, 11, 5
Answer: 14