Keystones — Bedrock
Five GCSE retrieval questions · 30 October 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 35
Answer: 18 + 35 = 53 -
2. Algebra Substitution
If x = 9, find the value of 7x + 9
Answer: 72 -
3. Geometry Converting lengths
Convert 12cm to mm
Answer: 120mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:8
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 18, 12, 6
Answer: 12