Keystones — Bedrock
Five GCSE retrieval questions · 28 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 39
Answer: 32 + 39 = 71 -
2. Algebra Substitution
If x = 8, find the value of 2x + 4
Answer: 20 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:9
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 18, 9, 17, 17, 4
Answer: 13