Keystones — Bedrock
Five GCSE retrieval questions · 13 November 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 80 + 26
Answer: 80 + 26 = 106 -
2. Algebra Substitution
If x = 4, find the value of 4x + 8
Answer: 24 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:20
Answer: 2:5 -
5. Statistics Mean
Find the mean of: 8, 19, 14, 7, 12
Answer: 12