Keystones — Bedrock
Five GCSE retrieval questions · 2 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 16 + 43
Answer: 16 + 43 = 59 -
2. Algebra Substitution
If x = 10, find the value of 5x + 10
Answer: 60 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 15, 13, 12, 4
Answer: 11