Keystones — Bedrock
Five GCSE retrieval questions · 21 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 24 + 49
Answer: 24 + 49 = 73 -
2. Algebra Substitution
If x = 5, find the value of 5x + 4
Answer: 29 -
3. Geometry Converting lengths
Convert 19cm to mm
Answer: 190mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:24
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 8, 10, 20, 15, 12
Answer: 13