Keystones — Bedrock
Five GCSE retrieval questions · 9 November 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 34 + 45
Answer: 34 + 45 = 79 -
2. Algebra Substitution
If x = 10, find the value of 4x + 7
Answer: 47 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 40:35
Answer: 8:7 -
5. Statistics Mean
Find the mean of: 18, 9, 13, 12, 23
Answer: 15