Keystones — Bedrock
Five GCSE retrieval questions · 9 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 22
Answer: 21 + 22 = 43 -
2. Algebra Substitution
If x = 9, find the value of 6x + 3
Answer: 57 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 12:21
Answer: 4:7 -
5. Statistics Mean
Find the mean of: 17, 17, 2
Answer: 12