Keystones — Bedrock
Five GCSE retrieval questions · 13 October 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 16
Answer: 15 + 16 = 31 -
2. Algebra Substitution
If x = 8, find the value of 3x + 4
Answer: 28 -
3. Geometry Converting lengths
Convert 4m to cm
Answer: 400cm -
4. Ratio Simplifying ratios
Simplify the ratio 10:6
Answer: 5:3 -
5. Statistics Mean
Find the mean of: 19, 9, 9, 3
Answer: 10