Keystones — Bedrock
Five GCSE retrieval questions · 12 August 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 16
Answer: 27 + 16 = 43 -
2. Algebra Substitution
If x = 8, find the value of 6x + 4
Answer: 52 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 4, 6, 20, 5, 10
Answer: 9