Keystones — Bedrock
Five GCSE retrieval questions · 20 April 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 30 + 42
Answer: 30 + 42 = 72 -
2. Algebra Substitution
If x = 7, find the value of 4x + 3
Answer: 31 -
3. Geometry Converting lengths
Convert 7m to cm
Answer: 700cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:30
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 13, 7, 18, 2, 20
Answer: 12