Keystones — Bedrock
Five GCSE retrieval questions · 11 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 40
Answer: 10 + 40 = 50 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 9, 12, 9
Answer: 10