Keystones — Bedrock
Five GCSE retrieval questions · 15 August 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 48
Answer: 23 + 48 = 71 -
2. Algebra Substitution
If x = 8, find the value of 3x + 3
Answer: 27 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 28:32
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 9, 16, 19, 12
Answer: 14