Keystones — Bedrock
Five GCSE retrieval questions · 30 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 11 + 28
Answer: 11 + 28 = 39 -
2. Algebra Substitution
If x = 8, find the value of 2x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 20, 4, 15
Answer: 13