Keystones — Bedrock
Five GCSE retrieval questions · 19 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 32 + 15
Answer: 32 + 15 = 47 -
2. Algebra Substitution
If x = 6, find the value of 7x + 5
Answer: 47 -
3. Geometry Converting lengths
Convert 17m to cm
Answer: 1700cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 17, 12, 7, 3, 6
Answer: 9