Keystones — Bedrock
Five GCSE retrieval questions · 29 August 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 48 + 45
Answer: 48 + 45 = 93 -
2. Algebra Substitution
If x = 5, find the value of 3x + 7
Answer: 22 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 35:15
Answer: 7:3 -
5. Statistics Mean
Find the mean of: 7, 12, 20
Answer: 13