Keystones — Bedrock
Five GCSE retrieval questions · 1 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 62
Answer: 23 + 62 = 85 -
2. Algebra Substitution
If x = 10, find the value of 7x + 3
Answer: 73 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:25
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 7, 10, 3, 12
Answer: 8