Keystones — Bedrock
Five GCSE retrieval questions · 26 February 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 37 + 20
Answer: 37 + 20 = 57 -
2. Algebra Substitution
If x = 5, find the value of 7x + 8
Answer: 43 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 14, 7, 11, 12
Answer: 11