Keystones — Bedrock
Five GCSE retrieval questions · 22 November 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 57 + 64
Answer: 57 + 64 = 121 -
2. Algebra Substitution
If x = 8, find the value of 7x + 9
Answer: 65 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:15
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 15, 9, 18, 12, 16
Answer: 14