Keystones — Bedrock
Five GCSE retrieval questions · 20 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 74 + 36
Answer: 74 + 36 = 110 -
2. Algebra Substitution
If x = 4, find the value of 5x + 10
Answer: 30 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:35
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 10, 15, 13, 22, 5
Answer: 13