Keystones — Bedrock
Five GCSE retrieval questions · 14 February 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 35
Answer: 31 + 35 = 66 -
2. Algebra Substitution
If x = 9, find the value of 5x + 10
Answer: 55 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:10
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 16, 12, 17
Answer: 15