Keystones — Bedrock
Five GCSE retrieval questions · 20 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 22
Answer: 25 + 22 = 47 -
2. Algebra Substitution
If x = 9, find the value of 6x + 7
Answer: 61 -
3. Geometry Converting lengths
Convert 49cm to mm
Answer: 490mm -
4. Ratio Simplifying ratios
Simplify the ratio 28:12
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 2, 8, 3, 15
Answer: 7