Keystones — Bedrock
Five GCSE retrieval questions · 21 January 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 47 + 35
Answer: 47 + 35 = 82 -
2. Algebra Substitution
If x = 10, find the value of 2x + 5
Answer: 25 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 14, 7, 3, 4
Answer: 7