Keystones — Bedrock
Five GCSE retrieval questions · 28 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 46 + 44
Answer: 46 + 44 = 90 -
2. Algebra Substitution
If x = 3, find the value of 8x + 12
Answer: 36 -
3. Geometry Converting lengths
Convert 6cm to mm
Answer: 60mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:15
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 11, 17, 11, 2, 19
Answer: 12