Keystones — Bedrock
Five GCSE retrieval questions · 7 June 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 13
Answer: 12 + 13 = 25 -
2. Algebra Substitution
If x = 4, find the value of 2x + 12
Answer: 20 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:20
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 11, 6, 15, 4, 9
Answer: 9