Keystones — Bedrock
Five GCSE retrieval questions · 28 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 31
Answer: 15 + 31 = 46 -
2. Algebra Substitution
If x = 8, find the value of 3x + 6
Answer: 30 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:25
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 11, 11, 8
Answer: 10