Keystones — Bedrock
Five GCSE retrieval questions · 14 May 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 50 + 73
Answer: 50 + 73 = 123 -
2. Algebra Substitution
If x = 6, find the value of 4x + 5
Answer: 29 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:28
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 3, 8, 19, 14
Answer: 11