Keystones — Bedrock
Five GCSE retrieval questions · 3 November 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 97
Answer: 41 + 97 = 138 -
2. Algebra Substitution
If x = 10, find the value of 2x + 5
Answer: 25 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:28
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 9, 2, 19, 2
Answer: 8