Keystones — Bedrock
Five GCSE retrieval questions · 30 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 47
Answer: 34 + 47 = 81 -
2. Algebra Substitution
If x = 8, find the value of 2x + 7
Answer: 23 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:16
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 4, 7, 19
Answer: 10