Keystones — Bedrock
Five GCSE retrieval questions · 6 April 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 38
Answer: 20 + 38 = 58 -
2. Algebra Substitution
If x = 8, find the value of 2x + 6
Answer: 22 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 6, 14, 17, 3, 5
Answer: 9