Keystones — Bedrock
Five GCSE retrieval questions · 7 July 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 47
Answer: 22 + 47 = 69 -
2. Algebra Substitution
If x = 10, find the value of 8x + 9
Answer: 89 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 14, 12, 16, 10
Answer: 13