Keystones — Bedrock
Five GCSE retrieval questions · 24 September 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 24 + 21
Answer: 24 + 21 = 45 -
2. Algebra Substitution
If x = 5, find the value of 5x + 8
Answer: 33 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 14, 12, 7
Answer: 11