Keystones — Bedrock
Five GCSE retrieval questions · 14 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 99 + 85
Answer: 99 + 85 = 184 -
2. Algebra Substitution
If x = 5, find the value of 3x + 5
Answer: 20 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:10
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 19, 16, 6, 7
Answer: 12