Keystones — Bedrock
Five GCSE retrieval questions · 2 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 40 + 42
Answer: 40 + 42 = 82 -
2. Algebra Substitution
If x = 3, find the value of 3x + 4
Answer: 13 -
3. Geometry Converting lengths
Convert 15cm to mm
Answer: 150mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:6
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 25, 8, 12
Answer: 15