Keystones — Bedrock
Five GCSE retrieval questions · 20 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 23
Answer: 21 + 23 = 44 -
2. Algebra Substitution
If x = 9, find the value of 5x + 8
Answer: 53 -
3. Geometry Converting lengths
Convert 3m to cm
Answer: 300cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:8
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 22, 7, 14, 13
Answer: 14