Keystones — Bedrock
Five GCSE retrieval questions · 20 October 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 22
Answer: 27 + 22 = 49 -
2. Algebra Substitution
If x = 2, find the value of 7x + 6
Answer: 20 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:10
Answer: 6:5 -
5. Statistics Mean
Find the mean of: 14, 15, 7, 14, 20
Answer: 14