Keystones — Bedrock
Five GCSE retrieval questions · 6 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 27
Answer: 41 + 27 = 68 -
2. Algebra Substitution
If x = 5, find the value of 6x + 8
Answer: 38 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 17, 5, 9, 17, 12
Answer: 12