Keystones — Bedrock
Five GCSE retrieval questions · 24 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 18
Answer: 31 + 18 = 49 -
2. Algebra Substitution
If x = 3, find the value of 2x + 10
Answer: 16 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:35
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 4, 22, 10, 12
Answer: 12