Keystones — Bedrock
Five GCSE retrieval questions · 20 January 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 32
Answer: 47 + 32 = 79 -
2. Algebra Substitution
If x = 7, find the value of 5x + 10
Answer: 45 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 4:10
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 17, 18, 5, 20, 15
Answer: 15