Keystones — Bedrock
Five GCSE retrieval questions · 25 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 70 + 45
Answer: 70 + 45 = 115 -
2. Algebra Substitution
If x = 3, find the value of 7x + 11
Answer: 32 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 7, 17, 18, 2
Answer: 11