Keystones — Bedrock
Five GCSE retrieval questions · 26 July 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 56
Answer: 25 + 56 = 81 -
2. Algebra Substitution
If x = 5, find the value of 6x + 9
Answer: 39 -
3. Geometry Converting lengths
Convert 37cm to mm
Answer: 370mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:35
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 17, 19, 14, 3, 12
Answer: 13