Keystones — Bedrock
Five GCSE retrieval questions · 16 December 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 40
Answer: 20 + 40 = 60 -
2. Algebra Substitution
If x = 2, find the value of 4x + 12
Answer: 20 -
3. Geometry Converting lengths
Convert 10m to cm
Answer: 1000cm -
4. Ratio Simplifying ratios
Simplify the ratio 8:16
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 7, 7, 14, 12
Answer: 10