Keystones — Bedrock
Five GCSE retrieval questions · 30 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 44
Answer: 30 + 44 = 74 -
2. Algebra Substitution
If x = 3, find the value of 5x + 9
Answer: 24 -
3. Geometry Converting lengths
Convert 8m to cm
Answer: 800cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:32
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 9, 4, 6, 4, 12
Answer: 7