Keystones — Bedrock
Five GCSE retrieval questions · 27 November 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 32
Answer: 20 + 32 = 52 -
2. Algebra Substitution
If x = 9, find the value of 5x + 8
Answer: 53 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:9
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 15, 24, 3
Answer: 14