Keystones — Bedrock
Five GCSE retrieval questions · 14 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 11
Answer: 28 + 11 = 39 -
2. Algebra Substitution
If x = 3, find the value of 8x + 4
Answer: 28 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:32
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 10, 8, 18, 7, 2
Answer: 9