Keystones — Bedrock
Five GCSE retrieval questions · 8 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 23
Answer: 48 + 23 = 71 -
2. Algebra Substitution
If x = 3, find the value of 7x + 4
Answer: 25 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:12
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 7, 15, 5
Answer: 9