Keystones — Bedrock
Five GCSE retrieval questions · 18 December 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 16 + 17
Answer: 16 + 17 = 33 -
2. Algebra Substitution
If x = 6, find the value of 4x + 9
Answer: 33 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 7, 10, 10
Answer: 9