Keystones — Bedrock
Five GCSE retrieval questions · 12 July 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 58 + 38
Answer: 58 + 38 = 96 -
2. Algebra Substitution
If x = 5, find the value of 7x + 8
Answer: 43 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:18
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 5, 3, 13
Answer: 7