Keystones — Bedrock
Five GCSE retrieval questions · 22 August 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 24
Answer: 21 + 24 = 45 -
2. Algebra Substitution
If x = 7, find the value of 4x + 3
Answer: 31 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 18:24
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 12, 1, 17, 2
Answer: 8