Keystones — Bedrock
Five GCSE retrieval questions · 17 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 26 + 27
Answer: 26 + 27 = 53 -
2. Algebra Substitution
If x = 4, find the value of 3x + 9
Answer: 21 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 9, 14, 4, 1
Answer: 7