Keystones — Bedrock
Five GCSE retrieval questions · 18 September 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 75 + 50
Answer: 75 + 50 = 125 -
2. Algebra Substitution
If x = 3, find the value of 2x + 10
Answer: 16 -
3. Geometry Converting lengths
Convert 50cm to mm
Answer: 500mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:21
Answer: 5:7 -
5. Statistics Mean
Find the mean of: 19, 9, 14
Answer: 14