Keystones — Bedrock
Five GCSE retrieval questions · 15 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 90 + 30
Answer: 90 + 30 = 120 -
2. Algebra Substitution
If x = 10, find the value of 3x + 11
Answer: 41 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 14, 19, 2, 9
Answer: 11