Keystones — Bedrock
Five GCSE retrieval questions · 8 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 40
Answer: 22 + 40 = 62 -
2. Algebra Substitution
If x = 3, find the value of 3x + 12
Answer: 21 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:10
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 9, 15, 6
Answer: 10