Keystones — Bedrock
Five GCSE retrieval questions · 8 December 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 49
Answer: 17 + 49 = 66 -
2. Algebra Substitution
If x = 10, find the value of 4x + 12
Answer: 52 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 17, 8, 11, 4
Answer: 10