Keystones — Bedrock
Five GCSE retrieval questions · 16 April 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 13
Answer: 17 + 13 = 30 -
2. Algebra Substitution
If x = 3, find the value of 7x + 4
Answer: 25 -
3. Geometry Converting lengths
Convert 13m to cm
Answer: 1300cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 16, 20, 3, 1
Answer: 10