Keystones — Bedrock
Five GCSE retrieval questions · 4 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 56 + 44
Answer: 56 + 44 = 100 -
2. Algebra Substitution
If x = 4, find the value of 5x + 4
Answer: 24 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:25
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 17, 17, 5, 9
Answer: 12