Keystones — Bedrock
Five GCSE retrieval questions · 12 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 75 + 72
Answer: 75 + 72 = 147 -
2. Algebra Substitution
If x = 2, find the value of 5x + 9
Answer: 19 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 8:20
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 9, 15, 5, 19
Answer: 12