Keystones — Bedrock
Five GCSE retrieval questions · 25 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 36
Answer: 20 + 36 = 56 -
2. Algebra Substitution
If x = 10, find the value of 3x + 12
Answer: 42 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:24
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 14, 17, 9, 5, 15
Answer: 12