Keystones — Bedrock
Five GCSE retrieval questions · 19 August 2013 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 15
Answer: 22 + 15 = 37 -
2. Algebra Substitution
If x = 9, find the value of 4x + 11
Answer: 47 -
3. Geometry Converting lengths
Convert 9m to cm
Answer: 900cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:18
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 14, 19, 9, 5, 8
Answer: 11