Keystones — Bedrock
Five GCSE retrieval questions · 28 April 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 12 + 40
Answer: 12 + 40 = 52 -
2. Algebra Substitution
If x = 10, find the value of 6x + 11
Answer: 71 -
3. Geometry Converting lengths
Convert 16cm to mm
Answer: 160mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:35
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 24, 18, 13, 12, 8
Answer: 15