Keystones — Bedrock
Five GCSE retrieval questions · 17 April 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 32
Answer: 15 + 32 = 47 -
2. Algebra Substitution
If x = 9, find the value of 4x + 9
Answer: 45 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:21
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 1, 5, 20, 6
Answer: 8