Keystones — Bedrock
Five GCSE retrieval questions · 28 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 45
Answer: 45 + 45 = 90 -
2. Algebra Substitution
If x = 6, find the value of 8x + 9
Answer: 57 -
3. Geometry Converting lengths
Convert 43cm to mm
Answer: 430mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:8
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 14, 16, 17, 9
Answer: 14