Keystones — Bedrock
Five GCSE retrieval questions · 10 November 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 68 + 79
Answer: 68 + 79 = 147 -
2. Algebra Substitution
If x = 7, find the value of 2x + 7
Answer: 21 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:8
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 16, 6, 8
Answer: 10