Keystones — Bedrock
Five GCSE retrieval questions · 29 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 14 + 21
Answer: 14 + 21 = 35 -
2. Algebra Substitution
If x = 6, find the value of 4x + 7
Answer: 31 -
3. Geometry Converting lengths
Convert 43cm to mm
Answer: 430mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:9
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 7, 20, 5, 7, 1
Answer: 8