Keystones — Bedrock
Five GCSE retrieval questions · 27 October 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 20
Answer: 17 + 20 = 37 -
2. Algebra Substitution
If x = 3, find the value of 5x + 8
Answer: 23 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:24
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 2, 23, 5
Answer: 10