Keystones — Bedrock
Five GCSE retrieval questions · 25 February 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 23
Answer: 30 + 23 = 53 -
2. Algebra Substitution
If x = 4, find the value of 5x + 7
Answer: 27 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:25
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 9, 3, 18
Answer: 10