Keystones — Bedrock
Five GCSE retrieval questions · 4 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 13 + 30
Answer: 13 + 30 = 43 -
2. Algebra Substitution
If x = 6, find the value of 6x + 7
Answer: 43 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:14
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 14, 20, 6, 20
Answer: 15