Keystones — Bedrock
Five GCSE retrieval questions · 19 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 38
Answer: 20 + 38 = 58 -
2. Algebra Substitution
If x = 2, find the value of 5x + 8
Answer: 18 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:20
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 10, 13, 9, 10, 8
Answer: 10