Keystones — Bedrock
Five GCSE retrieval questions · 24 May 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 16
Answer: 22 + 16 = 38 -
2. Algebra Substitution
If x = 7, find the value of 7x + 6
Answer: 55 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:21
Answer: 2:7 -
5. Statistics Mean
Find the mean of: 23, 12, 16, 12, 2
Answer: 13