Keystones — Bedrock
Five GCSE retrieval questions · 18 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 76 + 83
Answer: 76 + 83 = 159 -
2. Algebra Substitution
If x = 8, find the value of 3x + 11
Answer: 35 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 30:15
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 18, 7, 2
Answer: 9