Keystones — Bedrock
Five GCSE retrieval questions · 3 August 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 35
Answer: 32 + 35 = 67 -
2. Algebra Substitution
If x = 3, find the value of 4x + 12
Answer: 24 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:20
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 25, 8, 6, 17
Answer: 14