Keystones — Bedrock
Five GCSE retrieval questions · 27 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 41
Answer: 30 + 41 = 71 -
2. Algebra Substitution
If x = 4, find the value of 5x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:18
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 7, 8, 24, 9, 12
Answer: 12