Keystones — Bedrock
Five GCSE retrieval questions · 8 June 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 28 + 97
Answer: 28 + 97 = 125 -
2. Algebra Substitution
If x = 10, find the value of 6x + 10
Answer: 70 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:20
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 13, 7, 13, 20, 12
Answer: 13