Keystones — Bedrock
Five GCSE retrieval questions · 12 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 16
Answer: 18 + 16 = 34 -
2. Algebra Substitution
If x = 5, find the value of 2x + 4
Answer: 14 -
3. Geometry Converting lengths
Convert 21cm to mm
Answer: 210mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:16
Answer: 1:4 -
5. Statistics Mean
Find the mean of: 11, 2, 12, 7, 18
Answer: 10