Keystones — Bedrock
Five GCSE retrieval questions · 3 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 58 + 24
Answer: 58 + 24 = 82 -
2. Algebra Substitution
If x = 8, find the value of 8x + 5
Answer: 69 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 23, 7, 17, 20, 8
Answer: 15