Keystones — Bedrock
Five GCSE retrieval questions · 10 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 37
Answer: 30 + 37 = 67 -
2. Algebra Substitution
If x = 4, find the value of 4x + 7
Answer: 23 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:10
Answer: 3:5 -
5. Statistics Mean
Find the mean of: 20, 12, 7, 9
Answer: 12