Keystones — Bedrock
Five GCSE retrieval questions · 11 April 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 41
Answer: 20 + 41 = 61 -
2. Algebra Substitution
If x = 2, find the value of 2x + 10
Answer: 14 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:15
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 10, 10, 4
Answer: 8