Keystones — Bedrock
Five GCSE retrieval questions · 24 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 18
Answer: 28 + 18 = 46 -
2. Algebra Substitution
If x = 7, find the value of 8x + 3
Answer: 59 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 9, 18, 10, 3
Answer: 10