Keystones — Bedrock
Five GCSE retrieval questions · 29 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 26 + 46
Answer: 26 + 46 = 72 -
2. Algebra Substitution
If x = 2, find the value of 5x + 7
Answer: 17 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:12
Answer: 7:4 -
5. Statistics Mean
Find the mean of: 10, 10, 1, 15
Answer: 9