Keystones — Bedrock
Five GCSE retrieval questions · 14 February 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 26
Answer: 10 + 26 = 36 -
2. Algebra Substitution
If x = 2, find the value of 3x + 4
Answer: 10 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 20, 14, 11
Answer: 15